Disable Array.prototype.values

It still seems to break things in the wild, see attached Chromium
bug for details.

BUG=v8:4247, chromium:615873

Review-Url: https://codereview.chromium.org/2076763003
Cr-Commit-Position: refs/heads/master@{#37064}

src/flag-definitions.h

@@ -199,6 +199,7 @@ DEFINE_IMPLICATION(es_staging, harmony_async_await)
 
 // Features that are still work in progress (behind individual flags).
 #define HARMONY_INPROGRESS(V)                                           \
+  V(harmony_array_prototype_values, "harmony Array.prototype.values")   \
   V(harmony_function_sent, "harmony function.sent")                     \
   V(harmony_sharedarraybuffer, "harmony sharedarraybuffer")             \
   V(harmony_simd, "harmony simd")                                       \
@@ -230,7 +231,6 @@ DEFINE_IMPLICATION(es_staging, harmony_async_await)
 
 // Features that are shipping (turned on by default, but internal flag remains).
 #define HARMONY_SHIPPING(V)                                           \
-  V(harmony_array_prototype_values, "harmony Array.prototype.values") \
   V(harmony_function_name, "harmony Function name inference")         \
   V(harmony_instanceof, "harmony instanceof support")                 \
   V(harmony_iterator_close, "harmony iterator finalization")          \

test/test262/test262.status

@@ -336,6 +336,19 @@
   'built-ins/TypedArray/prototype/subarray/speciesctor-get-species-custom-ctor-throws': [FAIL],
   'built-ins/TypedArray/prototype/subarray/speciesctor-get-species-returns-throws': [FAIL],
 
+  # We do not expose Array.prototype.values due to webcompat issues.
+  # Most recent incompatability: https://crbug.com/615873
+  # https://code.google.com/p/v8/issues/detail?id=4247
+  'built-ins/Array/prototype/Symbol.iterator': [FAIL],
+  'built-ins/Array/prototype/values/returns-iterator': [FAIL],
+  'built-ins/Array/prototype/values/returns-iterator-from-object': [FAIL],
+  'built-ins/Array/prototype/values/prop-desc': [FAIL],
+  'built-ins/Array/prototype/values/name': [FAIL],
+  'built-ins/Array/prototype/values/length': [FAIL],
+  'built-ins/Array/prototype/values/iteration': [FAIL],
+  'built-ins/Array/prototype/values/iteration-mutable': [FAIL],
+  'built-ins/Array/prototype/Symbol.unscopables/value': [FAIL],
+
   ############################ INVALID TESTS #############################
 
   # Test makes unjustified assumptions about the number of calls to SortCompare.