diff --git a/test/built-ins/Array/prototype/findIndex/array-altered-during-loop.js b/test/built-ins/Array/prototype/findIndex/array-altered-during-loop.js
index e490021939..91b38f16f2 100644
--- a/test/built-ins/Array/prototype/findIndex/array-altered-during-loop.js
+++ b/test/built-ins/Array/prototype/findIndex/array-altered-during-loop.js
@@ -1,6 +1,7 @@
 // Copyright (C) 2015 the V8 project authors. All rights reserved.
 // This code is governed by the BSD license found in the LICENSE file.
 /*---
+esid: sec-array.prototype.findindex
 es6id: 22.1.3.9
 description: >
   The range of elements processed is set before the first call to `predicate`.
diff --git a/test/built-ins/Array/prototype/findIndex/length.js b/test/built-ins/Array/prototype/findIndex/length.js
index bdb946494e..ada76c7871 100644
--- a/test/built-ins/Array/prototype/findIndex/length.js
+++ b/test/built-ins/Array/prototype/findIndex/length.js
@@ -1,6 +1,7 @@
 // Copyright (C) 2015 the V8 project authors. All rights reserved.
 // This code is governed by the BSD license found in the LICENSE file.
 /*---
+esid: sec-array.prototype.findindex
 es6id: 22.1.3.9
 description: Array.prototype.findIndex.length value and descriptor.
 info: >
diff --git a/test/built-ins/Array/prototype/findIndex/name.js b/test/built-ins/Array/prototype/findIndex/name.js
index 6258ff467f..ff69b13715 100644
--- a/test/built-ins/Array/prototype/findIndex/name.js
+++ b/test/built-ins/Array/prototype/findIndex/name.js
@@ -1,6 +1,7 @@
 // Copyright (C) 2015 the V8 project authors. All rights reserved.
 // This code is governed by the BSD license found in the LICENSE file.
 /*---
+esid: sec-array.prototype.findindex
 es6id: 22.1.3.9
 description: >
   Array.prototype.findIndex.name value and descriptor.
diff --git a/test/built-ins/Array/prototype/findIndex/predicate-call-parameters.js b/test/built-ins/Array/prototype/findIndex/predicate-call-parameters.js
index 60a6dc1407..89c102e345 100644
--- a/test/built-ins/Array/prototype/findIndex/predicate-call-parameters.js
+++ b/test/built-ins/Array/prototype/findIndex/predicate-call-parameters.js
@@ -1,6 +1,7 @@
 // Copyright (C) 2015 the V8 project authors. All rights reserved.
 // This code is governed by the BSD license found in the LICENSE file.
 /*---
+esid: sec-array.prototype.findindex
 es6id: 22.1.3.9
 description: >
   Predicate called as F.call( thisArg, kValue, k, O ) for each array entry.
diff --git a/test/built-ins/Array/prototype/findIndex/predicate-call-this-non-strict.js b/test/built-ins/Array/prototype/findIndex/predicate-call-this-non-strict.js
index 0e702987eb..ad02f176fa 100644
--- a/test/built-ins/Array/prototype/findIndex/predicate-call-this-non-strict.js
+++ b/test/built-ins/Array/prototype/findIndex/predicate-call-this-non-strict.js
@@ -1,6 +1,7 @@
 // Copyright (C) 2015 the V8 project authors. All rights reserved.
 // This code is governed by the BSD license found in the LICENSE file.
 /*---
+esid: sec-array.prototype.findindex
 es6id: 22.1.3.9
 description: >
   Predicate thisArg as F.call( thisArg, kValue, k, O ) for each array entry.
diff --git a/test/built-ins/Array/prototype/findIndex/predicate-call-this-strict.js b/test/built-ins/Array/prototype/findIndex/predicate-call-this-strict.js
index 2febc6a41e..a265704ffb 100644
--- a/test/built-ins/Array/prototype/findIndex/predicate-call-this-strict.js
+++ b/test/built-ins/Array/prototype/findIndex/predicate-call-this-strict.js
@@ -1,6 +1,7 @@
 // Copyright (C) 2015 the V8 project authors. All rights reserved.
 // This code is governed by the BSD license found in the LICENSE file.
 /*---
+esid: sec-array.prototype.findindex
 es6id: 22.1.3.9
 description: >
   Predicate thisArg as F.call( thisArg, kValue, k, O ) for each array entry.
diff --git a/test/built-ins/Array/prototype/findIndex/predicate-called-for-each-array-property.js b/test/built-ins/Array/prototype/findIndex/predicate-called-for-each-array-property.js
index a9413f9544..a053f338f0 100644
--- a/test/built-ins/Array/prototype/findIndex/predicate-called-for-each-array-property.js
+++ b/test/built-ins/Array/prototype/findIndex/predicate-called-for-each-array-property.js
@@ -1,6 +1,7 @@
 // Copyright (C) 2015 the V8 project authors. All rights reserved.
 // This code is governed by the BSD license found in the LICENSE file.
 /*---
+esid: sec-array.prototype.findindex
 es6id: 22.1.3.9
 description: >
   Predicate is called for each array property.
diff --git a/test/built-ins/Array/prototype/findIndex/predicate-is-not-callable-throws.js b/test/built-ins/Array/prototype/findIndex/predicate-is-not-callable-throws.js
index e7da5795ed..7482ea2e2e 100644
--- a/test/built-ins/Array/prototype/findIndex/predicate-is-not-callable-throws.js
+++ b/test/built-ins/Array/prototype/findIndex/predicate-is-not-callable-throws.js
@@ -1,6 +1,7 @@
 // Copyright (C) 2015 the V8 project authors. All rights reserved.
 // This code is governed by the BSD license found in the LICENSE file.
 /*---
+esid: sec-array.prototype.findindex
 es6id: 22.1.3.9
 description: >
   Throws a TypeError exception if predicate is not callable.
diff --git a/test/built-ins/Array/prototype/findIndex/predicate-not-called-on-empty-array.js b/test/built-ins/Array/prototype/findIndex/predicate-not-called-on-empty-array.js
index 58788f9385..d02fe34905 100644
--- a/test/built-ins/Array/prototype/findIndex/predicate-not-called-on-empty-array.js
+++ b/test/built-ins/Array/prototype/findIndex/predicate-not-called-on-empty-array.js
@@ -1,6 +1,7 @@
 // Copyright (C) 2015 the V8 project authors. All rights reserved.
 // This code is governed by the BSD license found in the LICENSE file.
 /*---
+esid: sec-array.prototype.findindex
 es6id: 22.1.3.9
 description: >
   Predicate is only called if this.length is > 0.
diff --git a/test/built-ins/Array/prototype/findIndex/prop-desc.js b/test/built-ins/Array/prototype/findIndex/prop-desc.js
index 69557fb7f9..5cc5de089d 100644
--- a/test/built-ins/Array/prototype/findIndex/prop-desc.js
+++ b/test/built-ins/Array/prototype/findIndex/prop-desc.js
@@ -1,6 +1,7 @@
 // Copyright (C) 2015 the V8 project authors. All rights reserved.
 // This code is governed by the BSD license found in the LICENSE file.
 /*---
+esid: sec-array.prototype.findindex
 es6id: 22.1.3.9
 description: Property type and descriptor.
 info: >
diff --git a/test/built-ins/Array/prototype/findIndex/return-abrupt-from-predicate-call.js b/test/built-ins/Array/prototype/findIndex/return-abrupt-from-predicate-call.js
index c5b42e6ac2..171af14360 100644
--- a/test/built-ins/Array/prototype/findIndex/return-abrupt-from-predicate-call.js
+++ b/test/built-ins/Array/prototype/findIndex/return-abrupt-from-predicate-call.js
@@ -1,6 +1,7 @@
 // Copyright (C) 2015 the V8 project authors. All rights reserved.
 // This code is governed by the BSD license found in the LICENSE file.
 /*---
+esid: sec-array.prototype.findindex
 es6id: 22.1.3.9
 description: >
   Return abrupt from predicate call.
diff --git a/test/built-ins/Array/prototype/findIndex/return-abrupt-from-property.js b/test/built-ins/Array/prototype/findIndex/return-abrupt-from-property.js
index 88c729b244..9518b45718 100644
--- a/test/built-ins/Array/prototype/findIndex/return-abrupt-from-property.js
+++ b/test/built-ins/Array/prototype/findIndex/return-abrupt-from-property.js
@@ -1,6 +1,7 @@
 // Copyright (C) 2015 the V8 project authors. All rights reserved.
 // This code is governed by the BSD license found in the LICENSE file.
 /*---
+esid: sec-array.prototype.findindex
 es6id: 22.1.3.9
 description: >
   Returns abrupt from getting property value from `this`.
diff --git a/test/built-ins/Array/prototype/findIndex/return-abrupt-from-this-length-as-symbol.js b/test/built-ins/Array/prototype/findIndex/return-abrupt-from-this-length-as-symbol.js
index 0489657bb0..41061f021c 100644
--- a/test/built-ins/Array/prototype/findIndex/return-abrupt-from-this-length-as-symbol.js
+++ b/test/built-ins/Array/prototype/findIndex/return-abrupt-from-this-length-as-symbol.js
@@ -1,6 +1,7 @@
 // Copyright (C) 2015 the V8 project authors. All rights reserved.
 // This code is governed by the BSD license found in the LICENSE file.
 /*---
+esid: sec-array.prototype.findindex
 es6id: 22.1.3.9
 description: >
   Return abrupt from ToLength(Get(O, "length")) where length is a Symbol.
diff --git a/test/built-ins/Array/prototype/findIndex/return-abrupt-from-this-length.js b/test/built-ins/Array/prototype/findIndex/return-abrupt-from-this-length.js
index 294fbd9902..e893b2e464 100644
--- a/test/built-ins/Array/prototype/findIndex/return-abrupt-from-this-length.js
+++ b/test/built-ins/Array/prototype/findIndex/return-abrupt-from-this-length.js
@@ -1,6 +1,7 @@
 // Copyright (C) 2015 the V8 project authors. All rights reserved.
 // This code is governed by the BSD license found in the LICENSE file.
 /*---
+esid: sec-array.prototype.findindex
 es6id: 22.1.3.9
 description: >
   Return abrupt from ToLength(Get(O, "length")).
diff --git a/test/built-ins/Array/prototype/findIndex/return-abrupt-from-this.js b/test/built-ins/Array/prototype/findIndex/return-abrupt-from-this.js
index 35853a8279..74ec8b1413 100644
--- a/test/built-ins/Array/prototype/findIndex/return-abrupt-from-this.js
+++ b/test/built-ins/Array/prototype/findIndex/return-abrupt-from-this.js
@@ -1,6 +1,7 @@
 // Copyright (C) 2015 the V8 project authors. All rights reserved.
 // This code is governed by the BSD license found in the LICENSE file.
 /*---
+esid: sec-array.prototype.findindex
 es6id: 22.1.3.9
 description: >
   Return abrupt from ToObject(this value).
diff --git a/test/built-ins/Array/prototype/findIndex/return-index-predicate-result-is-true.js b/test/built-ins/Array/prototype/findIndex/return-index-predicate-result-is-true.js
index 349559e048..ee8d2c72a3 100644
--- a/test/built-ins/Array/prototype/findIndex/return-index-predicate-result-is-true.js
+++ b/test/built-ins/Array/prototype/findIndex/return-index-predicate-result-is-true.js
@@ -1,6 +1,7 @@
 // Copyright (C) 2015 the V8 project authors. All rights reserved.
 // This code is governed by the BSD license found in the LICENSE file.
 /*---
+esid: sec-array.prototype.findindex
 es6id: 22.1.3.9
 description: >
   Return index if predicate return a boolean true value.
diff --git a/test/built-ins/Array/prototype/findIndex/return-negative-one-if-predicate-returns-false-value.js b/test/built-ins/Array/prototype/findIndex/return-negative-one-if-predicate-returns-false-value.js
index f54e5bb496..6ef0b71ad9 100644
--- a/test/built-ins/Array/prototype/findIndex/return-negative-one-if-predicate-returns-false-value.js
+++ b/test/built-ins/Array/prototype/findIndex/return-negative-one-if-predicate-returns-false-value.js
@@ -1,6 +1,7 @@
 // Copyright (C) 2015 the V8 project authors. All rights reserved.
 // This code is governed by the BSD license found in the LICENSE file.
 /*---
+esid: sec-array.prototype.findindex
 es6id: 22.1.3.9
 description: >
   Return -1 if predicate always returns a boolean false value.