diff --git a/test/built-ins/String/prototype/trimEnd/length.js b/test/built-ins/String/prototype/trimEnd/length.js
index 37c9fd8b82..5dca15ce60 100644
--- a/test/built-ins/String/prototype/trimEnd/length.js
+++ b/test/built-ins/String/prototype/trimEnd/length.js
@@ -20,7 +20,7 @@ info: >
     object has the attributes { [[Writable]]: false, [[Enumerable]]: false,
     [[Configurable]]: true }.
 includes: [propertyHelper.js]
-features: [string-trimming]
+features: [string-trimming, String.prototype.trimEnd]
 ---*/
 
 verifyProperty(String.prototype.trimEnd, "length", {
diff --git a/test/built-ins/String/prototype/trimEnd/name.js b/test/built-ins/String/prototype/trimEnd/name.js
index 6a0dc7aecc..0914840ec1 100644
--- a/test/built-ins/String/prototype/trimEnd/name.js
+++ b/test/built-ins/String/prototype/trimEnd/name.js
@@ -17,7 +17,7 @@ info: >
     object, if it exists, has the attributes { [[Writable]]: false,
     [[Enumerable]]: false, [[Configurable]]: true }.
 includes: [propertyHelper.js]
-features: [string-trimming]
+features: [string-trimming, String.prototype.trimEnd]
 ---*/
 
 verifyProperty(String.prototype.trimEnd, "name", {
diff --git a/test/built-ins/String/prototype/trimEnd/prop-desc.js b/test/built-ins/String/prototype/trimEnd/prop-desc.js
index 990e201b48..c380ea7b4b 100644
--- a/test/built-ins/String/prototype/trimEnd/prop-desc.js
+++ b/test/built-ins/String/prototype/trimEnd/prop-desc.js
@@ -12,7 +12,7 @@ info: >
   has the attributes { [[Writable]]: true, [[Enumerable]]: false,
   [[Configurable]]: true } unless otherwise specified.
 includes: [propertyHelper.js]
-features: [string-trimming]
+features: [string-trimming, String.prototype.trimEnd]
 ---*/
 
 verifyProperty(String.prototype, "trimEnd", {
diff --git a/test/built-ins/String/prototype/trimEnd/this-value-boolean.js b/test/built-ins/String/prototype/trimEnd/this-value-boolean.js
index 948862f56e..ab2affea89 100644
--- a/test/built-ins/String/prototype/trimEnd/this-value-boolean.js
+++ b/test/built-ins/String/prototype/trimEnd/this-value-boolean.js
@@ -13,7 +13,7 @@ info: |
   Result:
     If argument is true, return "true".
     If argument is false, return "false".
-features: [string-trimming]
+features: [string-trimming, String.prototype.trimEnd]
 ---*/
 
 var trimEnd = String.prototype.trimEnd
diff --git a/test/built-ins/String/prototype/trimEnd/this-value-line-terminator.js b/test/built-ins/String/prototype/trimEnd/this-value-line-terminator.js
index 3e4eea802e..714aefe52b 100644
--- a/test/built-ins/String/prototype/trimEnd/this-value-line-terminator.js
+++ b/test/built-ins/String/prototype/trimEnd/this-value-line-terminator.js
@@ -13,7 +13,7 @@ info: |
 
   The definition of white space is the union of WhiteSpace and LineTerminator.
 
-features: [string-trimming]
+features: [string-trimming, String.prototype.trimEnd]
 ---*/
 
 var trimEnd = String.prototype.trimEnd;
diff --git a/test/built-ins/String/prototype/trimEnd/this-value-not-obj-coercible.js b/test/built-ins/String/prototype/trimEnd/this-value-not-obj-coercible.js
index 8f33e2de83..4f76f84ec3 100644
--- a/test/built-ins/String/prototype/trimEnd/this-value-not-obj-coercible.js
+++ b/test/built-ins/String/prototype/trimEnd/this-value-not-obj-coercible.js
@@ -6,7 +6,7 @@ esid: sec-string.prototype.trimEnd
 description: The "this" value must be object-coercible
 info: |
   1. Let O be ? RequireObjectCoercible(this value).
-features: [string-trimming]
+features: [string-trimming, String.prototype.trimEnd]
 ---*/
 
 var trimEnd = String.prototype.trimEnd;
diff --git a/test/built-ins/String/prototype/trimEnd/this-value-number.js b/test/built-ins/String/prototype/trimEnd/this-value-number.js
index dc57daecfa..2affe22615 100644
--- a/test/built-ins/String/prototype/trimEnd/this-value-number.js
+++ b/test/built-ins/String/prototype/trimEnd/this-value-number.js
@@ -11,7 +11,7 @@ info: |
   ToString ( argument )
   Argument Type: Number
   Result: NumberToString(argument)
-features: [string-trimming]
+features: [string-trimming, String.prototype.trimEnd]
 ---*/
 
 var trimEnd = String.prototype.trimEnd
diff --git a/test/built-ins/String/prototype/trimEnd/this-value-object-cannot-convert-to-primitive-err.js b/test/built-ins/String/prototype/trimEnd/this-value-object-cannot-convert-to-primitive-err.js
index 4aebe84585..3a85af554e 100644
--- a/test/built-ins/String/prototype/trimEnd/this-value-object-cannot-convert-to-primitive-err.js
+++ b/test/built-ins/String/prototype/trimEnd/this-value-object-cannot-convert-to-primitive-err.js
@@ -40,7 +40,7 @@ info: |
         i. Let result be ? Call(method, O).
         ii. If Type(result) is not Object, return result.
     6. Throw a TypeError exception.
-features: [string-trimming, Symbol.toPrimitive]
+features: [string-trimming, String.prototype.trimEnd, Symbol.toPrimitive]
 ---*/
 
 var thisVal = {
diff --git a/test/built-ins/String/prototype/trimEnd/this-value-object-toprimitive-call-err.js b/test/built-ins/String/prototype/trimEnd/this-value-object-toprimitive-call-err.js
index 7ef1a2c1fb..c86fc811a5 100644
--- a/test/built-ins/String/prototype/trimEnd/this-value-object-toprimitive-call-err.js
+++ b/test/built-ins/String/prototype/trimEnd/this-value-object-toprimitive-call-err.js
@@ -20,7 +20,7 @@ info: |
    ...
     d. Let exoticToPrim be ? GetMethod(input, @@toPrimitive).
    ...
-features: [string-trimming, Symbol.toPrimitive]
+features: [string-trimming, String.prototype.trimEnd, Symbol.toPrimitive]
 ---*/
 
 var thisVal = {
diff --git a/test/built-ins/String/prototype/trimEnd/this-value-object-toprimitive-meth-err.js b/test/built-ins/String/prototype/trimEnd/this-value-object-toprimitive-meth-err.js
index f0bb5bf48b..5de13dcfed 100644
--- a/test/built-ins/String/prototype/trimEnd/this-value-object-toprimitive-meth-err.js
+++ b/test/built-ins/String/prototype/trimEnd/this-value-object-toprimitive-meth-err.js
@@ -22,7 +22,7 @@ info: |
     e. If exoticToPrim is not undefined, then
       i. Let result be ? Call(exoticToPrim, input, « hint »).
    ...
-features: [string-trimming, Symbol.toPrimitive]
+features: [string-trimming, String.prototype.trimEnd, Symbol.toPrimitive]
 ---*/
 
 var thisVal = {
diff --git a/test/built-ins/String/prototype/trimEnd/this-value-object-toprimitive-meth-priority.js b/test/built-ins/String/prototype/trimEnd/this-value-object-toprimitive-meth-priority.js
index df52f8a248..f7bdb4e5e4 100644
--- a/test/built-ins/String/prototype/trimEnd/this-value-object-toprimitive-meth-priority.js
+++ b/test/built-ins/String/prototype/trimEnd/this-value-object-toprimitive-meth-priority.js
@@ -23,7 +23,7 @@ info: |
       i. Let result be ? Call(exoticToPrim, input, « hint »).
       ii. If Type(result) is not Object, return result.
    ...
-features: [string-trimming, Symbol.toPrimitive]
+features: [string-trimming, String.prototype.trimEnd, Symbol.toPrimitive]
 ---*/
 
 
diff --git a/test/built-ins/String/prototype/trimEnd/this-value-object-toprimitive-returns-object-err.js b/test/built-ins/String/prototype/trimEnd/this-value-object-toprimitive-returns-object-err.js
index b67fe117a4..a40d97ba89 100644
--- a/test/built-ins/String/prototype/trimEnd/this-value-object-toprimitive-returns-object-err.js
+++ b/test/built-ins/String/prototype/trimEnd/this-value-object-toprimitive-returns-object-err.js
@@ -24,7 +24,7 @@ info: |
       ii. If Type(result) is not Object, return result.
       iii. Throw a TypeError exception.
    ...
-features: [string-trimming, Symbol.toPrimitive]
+features: [string-trimming, String.prototype.trimEnd, Symbol.toPrimitive]
 ---*/
 
 var thisVal = {
diff --git a/test/built-ins/String/prototype/trimEnd/this-value-object-tostring-call-err.js b/test/built-ins/String/prototype/trimEnd/this-value-object-tostring-call-err.js
index f7ed44d101..85d69e266f 100644
--- a/test/built-ins/String/prototype/trimEnd/this-value-object-tostring-call-err.js
+++ b/test/built-ins/String/prototype/trimEnd/this-value-object-tostring-call-err.js
@@ -36,7 +36,7 @@ info: |
    ...
     5. For each name in methodNames in List order, do
       a. Let method be ? Get(O, name).
-features: [string-trimming, Symbol.toPrimitive]
+features: [string-trimming, String.prototype.trimEnd, Symbol.toPrimitive]
 ---*/
 
 var thisVal = {
diff --git a/test/built-ins/String/prototype/trimEnd/this-value-object-tostring-meth-err.js b/test/built-ins/String/prototype/trimEnd/this-value-object-tostring-meth-err.js
index 40c2b9bcce..87ceb88d89 100644
--- a/test/built-ins/String/prototype/trimEnd/this-value-object-tostring-meth-err.js
+++ b/test/built-ins/String/prototype/trimEnd/this-value-object-tostring-meth-err.js
@@ -38,7 +38,7 @@ info: |
       a. Let method be ? Get(O, name).
       b. If IsCallable(method) is true, then
         i. Let result be ? Call(method, O).
-features: [string-trimming, Symbol.toPrimitive]
+features: [string-trimming, String.prototype.trimEnd, Symbol.toPrimitive]
 ---*/
 
 var thisVal = {
diff --git a/test/built-ins/String/prototype/trimEnd/this-value-object-tostring-meth-priority.js b/test/built-ins/String/prototype/trimEnd/this-value-object-tostring-meth-priority.js
index 06d82538fe..50e78cb603 100644
--- a/test/built-ins/String/prototype/trimEnd/this-value-object-tostring-meth-priority.js
+++ b/test/built-ins/String/prototype/trimEnd/this-value-object-tostring-meth-priority.js
@@ -40,7 +40,7 @@ info: |
         i. Let result be ? Call(method, O).
         ii. If Type(result) is not Object, return result.
    ...
-features: [string-trimming, Symbol.toPrimitive]
+features: [string-trimming, String.prototype.trimEnd, Symbol.toPrimitive]
 ---*/
 
 var toPrimitiveAccessed = 0;
diff --git a/test/built-ins/String/prototype/trimEnd/this-value-object-tostring-returns-object-err.js b/test/built-ins/String/prototype/trimEnd/this-value-object-tostring-returns-object-err.js
index e47539fadf..2b4ed6006d 100644
--- a/test/built-ins/String/prototype/trimEnd/this-value-object-tostring-returns-object-err.js
+++ b/test/built-ins/String/prototype/trimEnd/this-value-object-tostring-returns-object-err.js
@@ -40,7 +40,7 @@ info: |
         i. Let result be ? Call(method, O).
         ii. If Type(result) is not Object, return result.
     6. Throw a TypeError exception.
-features: [string-trimming, Symbol.toPrimitive]
+features: [string-trimming, String.prototype.trimEnd, Symbol.toPrimitive]
 ---*/
 
 
diff --git a/test/built-ins/String/prototype/trimEnd/this-value-object-valueof-call-err.js b/test/built-ins/String/prototype/trimEnd/this-value-object-valueof-call-err.js
index ccd4516745..a3c52d809f 100644
--- a/test/built-ins/String/prototype/trimEnd/this-value-object-valueof-call-err.js
+++ b/test/built-ins/String/prototype/trimEnd/this-value-object-valueof-call-err.js
@@ -36,7 +36,7 @@ info: |
    ...
     5. For each name in methodNames in List order, do
       a. Let method be ? Get(O, name).
-features: [string-trimming, Symbol.toPrimitive]
+features: [string-trimming, String.prototype.trimEnd, Symbol.toPrimitive]
 ---*/
 
 var thisVal = {
diff --git a/test/built-ins/String/prototype/trimEnd/this-value-object-valueof-meth-err.js b/test/built-ins/String/prototype/trimEnd/this-value-object-valueof-meth-err.js
index 386398aebb..9daf826ada 100644
--- a/test/built-ins/String/prototype/trimEnd/this-value-object-valueof-meth-err.js
+++ b/test/built-ins/String/prototype/trimEnd/this-value-object-valueof-meth-err.js
@@ -38,7 +38,7 @@ info: |
       a. Let method be ? Get(O, name).
       b. If IsCallable(method) is true, then
         i. Let result be ? Call(method, O).
-features: [string-trimming, Symbol.toPrimitive]
+features: [string-trimming, String.prototype.trimEnd, Symbol.toPrimitive]
 ---*/
 
 var thisVal = {
diff --git a/test/built-ins/String/prototype/trimEnd/this-value-object-valueof-meth-priority.js b/test/built-ins/String/prototype/trimEnd/this-value-object-valueof-meth-priority.js
index 778846c079..fe327468ef 100644
--- a/test/built-ins/String/prototype/trimEnd/this-value-object-valueof-meth-priority.js
+++ b/test/built-ins/String/prototype/trimEnd/this-value-object-valueof-meth-priority.js
@@ -40,7 +40,7 @@ info: |
         i. Let result be ? Call(method, O).
         ii. If Type(result) is not Object, return result.
    ...
-features: [string-trimming, Symbol.toPrimitive]
+features: [string-trimming, String.prototype.trimEnd, Symbol.toPrimitive]
 ---*/
 
 var toPrimitiveAccessed = 0;
diff --git a/test/built-ins/String/prototype/trimEnd/this-value-object-valueof-returns-object-err.js b/test/built-ins/String/prototype/trimEnd/this-value-object-valueof-returns-object-err.js
index c166666074..20a8273150 100644
--- a/test/built-ins/String/prototype/trimEnd/this-value-object-valueof-returns-object-err.js
+++ b/test/built-ins/String/prototype/trimEnd/this-value-object-valueof-returns-object-err.js
@@ -40,7 +40,7 @@ info: |
         i. Let result be ? Call(method, O).
         ii. If Type(result) is not Object, return result.
     6. Throw a TypeError exception.
-features: [string-trimming, Symbol.toPrimitive]
+features: [string-trimming, String.prototype.trimEnd, Symbol.toPrimitive]
 ---*/
 
 
diff --git a/test/built-ins/String/prototype/trimEnd/this-value-symbol-typeerror.js b/test/built-ins/String/prototype/trimEnd/this-value-symbol-typeerror.js
index c12f2ebf30..e53131a6a0 100644
--- a/test/built-ins/String/prototype/trimEnd/this-value-symbol-typeerror.js
+++ b/test/built-ins/String/prototype/trimEnd/this-value-symbol-typeerror.js
@@ -11,7 +11,7 @@ info: |
   ToString ( argument )
   Argument Type: Symbol
   Result: Throw a TypeError exception
-features: [string-trimming]
+features: [string-trimming, String.prototype.trimEnd]
 ---*/
 
 var trimEnd = String.prototype.trimEnd;
diff --git a/test/built-ins/String/prototype/trimEnd/this-value-whitespace.js b/test/built-ins/String/prototype/trimEnd/this-value-whitespace.js
index 6889a5bbf8..3cc25534bf 100644
--- a/test/built-ins/String/prototype/trimEnd/this-value-whitespace.js
+++ b/test/built-ins/String/prototype/trimEnd/this-value-whitespace.js
@@ -16,7 +16,7 @@ info: |
   “Zs”, code unit sequences are interpreted as UTF-16 encoded code point
   sequences as specified in 6.1.4.
 
-features: [string-trimming]
+features: [string-trimming, String.prototype.trimEnd]
 ---*/
 
 var trimEnd = String.prototype.trimEnd;
diff --git a/test/built-ins/String/prototype/trimStart/length.js b/test/built-ins/String/prototype/trimStart/length.js
index 43373b2cdc..d5a4689a80 100644
--- a/test/built-ins/String/prototype/trimStart/length.js
+++ b/test/built-ins/String/prototype/trimStart/length.js
@@ -20,7 +20,7 @@ info: >
     object has the attributes { [[Writable]]: false, [[Enumerable]]: false,
     [[Configurable]]: true }.
 includes: [propertyHelper.js]
-features: [string-trimming]
+features: [string-trimming, String.prototype.trimStart]
 ---*/
 
 verifyProperty(String.prototype.trimStart, "length", {
diff --git a/test/built-ins/String/prototype/trimStart/name.js b/test/built-ins/String/prototype/trimStart/name.js
index 60a3442af8..403aee27f3 100644
--- a/test/built-ins/String/prototype/trimStart/name.js
+++ b/test/built-ins/String/prototype/trimStart/name.js
@@ -17,7 +17,7 @@ info: >
     object, if it exists, has the attributes { [[Writable]]: false,
     [[Enumerable]]: false, [[Configurable]]: true }.
 includes: [propertyHelper.js]
-features: [string-trimming]
+features: [string-trimming, String.prototype.trimStart]
 ---*/
 
 verifyProperty(String.prototype.trimStart, "name", {
diff --git a/test/built-ins/String/prototype/trimStart/prop-desc.js b/test/built-ins/String/prototype/trimStart/prop-desc.js
index a7f55ab691..795e880680 100644
--- a/test/built-ins/String/prototype/trimStart/prop-desc.js
+++ b/test/built-ins/String/prototype/trimStart/prop-desc.js
@@ -12,7 +12,7 @@ info: >
   has the attributes { [[Writable]]: true, [[Enumerable]]: false,
   [[Configurable]]: true } unless otherwise specified.
 includes: [propertyHelper.js]
-features: [string-trimming]
+features: [string-trimming, String.prototype.trimStart]
 ---*/
 
 verifyProperty(String.prototype, "trimStart", {
diff --git a/test/built-ins/String/prototype/trimStart/this-value-boolean.js b/test/built-ins/String/prototype/trimStart/this-value-boolean.js
index b682cb49a7..e9a9657cea 100644
--- a/test/built-ins/String/prototype/trimStart/this-value-boolean.js
+++ b/test/built-ins/String/prototype/trimStart/this-value-boolean.js
@@ -13,7 +13,7 @@ info: |
   Result:
     If argument is true, return "true".
     If argument is false, return "false".
-features: [string-trimming]
+features: [string-trimming, String.prototype.trimStart]
 ---*/
 
 var trimStart = String.prototype.trimStart
diff --git a/test/built-ins/String/prototype/trimStart/this-value-line-terminator.js b/test/built-ins/String/prototype/trimStart/this-value-line-terminator.js
index 743e714a2a..54aab4a98f 100644
--- a/test/built-ins/String/prototype/trimStart/this-value-line-terminator.js
+++ b/test/built-ins/String/prototype/trimStart/this-value-line-terminator.js
@@ -13,7 +13,7 @@ info: |
 
   The definition of white space is the union of WhiteSpace and LineTerminator.
 
-features: [string-trimming]
+features: [string-trimming, String.prototype.trimStart]
 ---*/
 
 var trimStart = String.prototype.trimStart;
diff --git a/test/built-ins/String/prototype/trimStart/this-value-not-obj-coercible.js b/test/built-ins/String/prototype/trimStart/this-value-not-obj-coercible.js
index f97805039e..141a2af5a0 100644
--- a/test/built-ins/String/prototype/trimStart/this-value-not-obj-coercible.js
+++ b/test/built-ins/String/prototype/trimStart/this-value-not-obj-coercible.js
@@ -6,7 +6,7 @@ esid: sec-string.prototype.trimStart
 description: The "this" value must be object-coercible
 info: |
   1. Let O be ? RequireObjectCoercible(this value).
-features: [string-trimming]
+features: [string-trimming, String.prototype.trimStart]
 ---*/
 
 var trimStart = String.prototype.trimStart;
diff --git a/test/built-ins/String/prototype/trimStart/this-value-number.js b/test/built-ins/String/prototype/trimStart/this-value-number.js
index 7368d5d037..2a4a518eaa 100644
--- a/test/built-ins/String/prototype/trimStart/this-value-number.js
+++ b/test/built-ins/String/prototype/trimStart/this-value-number.js
@@ -11,7 +11,7 @@ info: |
   ToString ( argument )
   Argument Type: Number
   Result: NumberToString(argument)
-features: [string-trimming]
+features: [string-trimming, String.prototype.trimStart]
 ---*/
 
 var trimStart = String.prototype.trimStart
diff --git a/test/built-ins/String/prototype/trimStart/this-value-object-cannot-convert-to-primitive-err.js b/test/built-ins/String/prototype/trimStart/this-value-object-cannot-convert-to-primitive-err.js
index 286fb6908b..15de7e4159 100644
--- a/test/built-ins/String/prototype/trimStart/this-value-object-cannot-convert-to-primitive-err.js
+++ b/test/built-ins/String/prototype/trimStart/this-value-object-cannot-convert-to-primitive-err.js
@@ -40,7 +40,7 @@ info: |
         i. Let result be ? Call(method, O).
         ii. If Type(result) is not Object, return result.
     6. Throw a TypeError exception.
-features: [string-trimming, Symbol.toPrimitive]
+features: [string-trimming, String.prototype.trimStart, Symbol.toPrimitive]
 ---*/
 
 var thisVal = {
diff --git a/test/built-ins/String/prototype/trimStart/this-value-object-toprimitive-call-err.js b/test/built-ins/String/prototype/trimStart/this-value-object-toprimitive-call-err.js
index 85d1dded5f..d19ee4ca12 100644
--- a/test/built-ins/String/prototype/trimStart/this-value-object-toprimitive-call-err.js
+++ b/test/built-ins/String/prototype/trimStart/this-value-object-toprimitive-call-err.js
@@ -20,7 +20,7 @@ info: |
    ...
     d. Let exoticToPrim be ? GetMethod(input, @@toPrimitive).
    ...
-features: [string-trimming, Symbol.toPrimitive]
+features: [string-trimming, String.prototype.trimStart, Symbol.toPrimitive]
 ---*/
 
 var thisVal = {
diff --git a/test/built-ins/String/prototype/trimStart/this-value-object-toprimitive-meth-err.js b/test/built-ins/String/prototype/trimStart/this-value-object-toprimitive-meth-err.js
index 4469409969..5532bd1431 100644
--- a/test/built-ins/String/prototype/trimStart/this-value-object-toprimitive-meth-err.js
+++ b/test/built-ins/String/prototype/trimStart/this-value-object-toprimitive-meth-err.js
@@ -22,7 +22,7 @@ info: |
     e. If exoticToPrim is not undefined, then
       i. Let result be ? Call(exoticToPrim, input, « hint »).
    ...
-features: [string-trimming, Symbol.toPrimitive]
+features: [string-trimming, String.prototype.trimStart, Symbol.toPrimitive]
 ---*/
 
 var thisVal = {
diff --git a/test/built-ins/String/prototype/trimStart/this-value-object-toprimitive-meth-priority.js b/test/built-ins/String/prototype/trimStart/this-value-object-toprimitive-meth-priority.js
index a1d1d3d399..b6db921211 100644
--- a/test/built-ins/String/prototype/trimStart/this-value-object-toprimitive-meth-priority.js
+++ b/test/built-ins/String/prototype/trimStart/this-value-object-toprimitive-meth-priority.js
@@ -23,7 +23,7 @@ info: |
       i. Let result be ? Call(exoticToPrim, input, « hint »).
       ii. If Type(result) is not Object, return result.
    ...
-features: [string-trimming, Symbol.toPrimitive]
+features: [string-trimming, String.prototype.trimStart, Symbol.toPrimitive]
 ---*/
 
 
diff --git a/test/built-ins/String/prototype/trimStart/this-value-object-toprimitive-returns-object-err.js b/test/built-ins/String/prototype/trimStart/this-value-object-toprimitive-returns-object-err.js
index becaf421b3..a5e0bf976f 100644
--- a/test/built-ins/String/prototype/trimStart/this-value-object-toprimitive-returns-object-err.js
+++ b/test/built-ins/String/prototype/trimStart/this-value-object-toprimitive-returns-object-err.js
@@ -24,7 +24,7 @@ info: |
       ii. If Type(result) is not Object, return result.
       iii. Throw a TypeError exception.
    ...
-features: [string-trimming, Symbol.toPrimitive]
+features: [string-trimming, String.prototype.trimStart, Symbol.toPrimitive]
 ---*/
 
 var thisVal = {
diff --git a/test/built-ins/String/prototype/trimStart/this-value-object-tostring-call-err.js b/test/built-ins/String/prototype/trimStart/this-value-object-tostring-call-err.js
index 2a7737e86a..f1734f5d36 100644
--- a/test/built-ins/String/prototype/trimStart/this-value-object-tostring-call-err.js
+++ b/test/built-ins/String/prototype/trimStart/this-value-object-tostring-call-err.js
@@ -36,7 +36,7 @@ info: |
    ...
     5. For each name in methodNames in List order, do
       a. Let method be ? Get(O, name).
-features: [string-trimming, Symbol.toPrimitive]
+features: [string-trimming, String.prototype.trimStart, Symbol.toPrimitive]
 ---*/
 
 var thisVal = {
diff --git a/test/built-ins/String/prototype/trimStart/this-value-object-tostring-meth-err.js b/test/built-ins/String/prototype/trimStart/this-value-object-tostring-meth-err.js
index 98f28df24a..0c608cdf6e 100644
--- a/test/built-ins/String/prototype/trimStart/this-value-object-tostring-meth-err.js
+++ b/test/built-ins/String/prototype/trimStart/this-value-object-tostring-meth-err.js
@@ -38,7 +38,7 @@ info: |
       a. Let method be ? Get(O, name).
       b. If IsCallable(method) is true, then
         i. Let result be ? Call(method, O).
-features: [string-trimming, Symbol.toPrimitive]
+features: [string-trimming, String.prototype.trimStart, Symbol.toPrimitive]
 ---*/
 
 var thisVal = {
diff --git a/test/built-ins/String/prototype/trimStart/this-value-object-tostring-meth-priority.js b/test/built-ins/String/prototype/trimStart/this-value-object-tostring-meth-priority.js
index 862142a39d..af3d348730 100644
--- a/test/built-ins/String/prototype/trimStart/this-value-object-tostring-meth-priority.js
+++ b/test/built-ins/String/prototype/trimStart/this-value-object-tostring-meth-priority.js
@@ -40,7 +40,7 @@ info: |
         i. Let result be ? Call(method, O).
         ii. If Type(result) is not Object, return result.
    ...
-features: [string-trimming, Symbol.toPrimitive]
+features: [string-trimming, String.prototype.trimStart, Symbol.toPrimitive]
 ---*/
 
 var toPrimitiveAccessed = 0;
diff --git a/test/built-ins/String/prototype/trimStart/this-value-object-tostring-returns-object-err.js b/test/built-ins/String/prototype/trimStart/this-value-object-tostring-returns-object-err.js
index c55b81e174..30ee4c7511 100644
--- a/test/built-ins/String/prototype/trimStart/this-value-object-tostring-returns-object-err.js
+++ b/test/built-ins/String/prototype/trimStart/this-value-object-tostring-returns-object-err.js
@@ -40,7 +40,7 @@ info: |
         i. Let result be ? Call(method, O).
         ii. If Type(result) is not Object, return result.
     6. Throw a TypeError exception.
-features: [string-trimming, Symbol.toPrimitive]
+features: [string-trimming, String.prototype.trimStart, Symbol.toPrimitive]
 ---*/
 
 
diff --git a/test/built-ins/String/prototype/trimStart/this-value-object-valueof-meth-err.js b/test/built-ins/String/prototype/trimStart/this-value-object-valueof-meth-err.js
index 798bb64c61..ec49708446 100644
--- a/test/built-ins/String/prototype/trimStart/this-value-object-valueof-meth-err.js
+++ b/test/built-ins/String/prototype/trimStart/this-value-object-valueof-meth-err.js
@@ -38,7 +38,7 @@ info: |
       a. Let method be ? Get(O, name).
       b. If IsCallable(method) is true, then
         i. Let result be ? Call(method, O).
-features: [string-trimming, Symbol.toPrimitive]
+features: [string-trimming, String.prototype.trimStart, Symbol.toPrimitive]
 ---*/
 
 var thisVal = {
diff --git a/test/built-ins/String/prototype/trimStart/this-value-object-valueof-meth-priority.js b/test/built-ins/String/prototype/trimStart/this-value-object-valueof-meth-priority.js
index ae90d4be19..6ebbda7365 100644
--- a/test/built-ins/String/prototype/trimStart/this-value-object-valueof-meth-priority.js
+++ b/test/built-ins/String/prototype/trimStart/this-value-object-valueof-meth-priority.js
@@ -40,7 +40,7 @@ info: |
         i. Let result be ? Call(method, O).
         ii. If Type(result) is not Object, return result.
    ...
-features: [string-trimming, Symbol.toPrimitive]
+features: [string-trimming, String.prototype.trimStart, Symbol.toPrimitive]
 ---*/
 
 var toPrimitiveAccessed = 0;
diff --git a/test/built-ins/String/prototype/trimStart/this-value-object-valueof-returns-object-err.js b/test/built-ins/String/prototype/trimStart/this-value-object-valueof-returns-object-err.js
index b89e636ee8..85cced2dca 100644
--- a/test/built-ins/String/prototype/trimStart/this-value-object-valueof-returns-object-err.js
+++ b/test/built-ins/String/prototype/trimStart/this-value-object-valueof-returns-object-err.js
@@ -40,7 +40,7 @@ info: |
         i. Let result be ? Call(method, O).
         ii. If Type(result) is not Object, return result.
     6. Throw a TypeError exception.
-features: [string-trimming, Symbol.toPrimitive]
+features: [string-trimming, String.prototype.trimStart, Symbol.toPrimitive]
 ---*/
 
 
diff --git a/test/built-ins/String/prototype/trimStart/this-value-symbol-typeerror.js b/test/built-ins/String/prototype/trimStart/this-value-symbol-typeerror.js
index 15031e33c4..e66f2e85d7 100644
--- a/test/built-ins/String/prototype/trimStart/this-value-symbol-typeerror.js
+++ b/test/built-ins/String/prototype/trimStart/this-value-symbol-typeerror.js
@@ -11,7 +11,7 @@ info: |
   ToString ( argument )
   Argument Type: Symbol
   Result: Throw a TypeError exception
-features: [string-trimming]
+features: [string-trimming, String.prototype.trimStart]
 ---*/
 
 var trimStart = String.prototype.trimStart;
diff --git a/test/built-ins/String/prototype/trimStart/this-value-whitespace.js b/test/built-ins/String/prototype/trimStart/this-value-whitespace.js
index 913d3a21ec..cb22a408d9 100644
--- a/test/built-ins/String/prototype/trimStart/this-value-whitespace.js
+++ b/test/built-ins/String/prototype/trimStart/this-value-whitespace.js
@@ -16,7 +16,7 @@ info: |
   “Zs”, code unit sequences are interpreted as UTF-16 encoded code point
   sequences as specified in 6.1.4.
 
-features: [string-trimming]
+features: [string-trimming, String.prototype.trimStart]
 ---*/
 
 var trimStart = String.prototype.trimStart;