Give Error cause tests the error-cause feature tag (#2977)

features.txt

@@ -303,3 +303,7 @@ host-gc-required
 # Ergonomic brand checks for Private Fields
 # https://github.com/tc39/proposal-private-fields-in-in
 class-fields-private-in
+
+# Error cause
+# https://github.com/tc39/proposal-error-cause
+error-cause

test/built-ins/Error/cause_abrupt.js

@@ -18,6 +18,7 @@ info: |
   ...
 
 esid: sec-error-message
+features: [error-cause]
 ---*/
 
 var message = "my-message";

test/built-ins/Error/cause_property.js

@@ -18,6 +18,7 @@ info: |
   ...
 
 esid: sec-error-message
+features: [error-cause]
 includes: [propertyHelper.js]
 ---*/
 

test/built-ins/Error/constructor.js

@@ -11,6 +11,7 @@ info: |
   ...
 
 esid: sec-error-message
+features: [error-cause]
 includes: [deepEqual.js]
 ---*/
 

test/built-ins/NativeErrors/AggregateError/cause-property.js

@@ -19,7 +19,7 @@ info: |
     b. Perform ! CreateNonEnumerableDataPropertyOrThrow(O, "cause", cause).
   ...
 
-features: [AggregateError]
+features: [AggregateError, error-cause]
 includes: [propertyHelper.js]
 ---*/
 

test/built-ins/NativeErrors/cause_property_native_error.js

@@ -18,6 +18,7 @@ info: |
   ...
 
 esid: sec-nativeerror
+features: [error-cause]
 includes: [propertyHelper.js]
 ---*/