Stage --harmony-new-target

BUG=v8:3887
LOG=y

Review URL: https://codereview.chromium.org/1238693004

Cr-Commit-Position: refs/heads/master@{#29714}

src/flag-definitions.h

@@ -196,13 +196,13 @@ DEFINE_BOOL(legacy_const, true, "legacy semantics for const in sloppy mode")
   V(harmony_destructuring, "harmony destructuring")             \
   V(harmony_sharedarraybuffer, "harmony sharedarraybuffer")     \
   V(harmony_atomics, "harmony atomics")                         \
-  V(harmony_new_target, "harmony new.target")                   \
   V(harmony_simd, "harmony simd")
 
 // Features that are complete (but still behind --harmony/es-staging flag).
 #define HARMONY_STAGED(V)                                    \
   V(harmony_tostring, "harmony toString")                    \
   V(harmony_concat_spreadable, "harmony isConcatSpreadable") \
+  V(harmony_new_target, "harmony new.target")                \
   V(harmony_rest_parameters, "harmony rest parameters")
 
 // Features that are shipping (turned on by default, but internal flag remains).

test/test262-es6/test262-es6.status

@@ -439,11 +439,6 @@
   'language/computed-property-names/class/static/method-symbol': [FAIL, FAIL_SLOPPY],
   'language/computed-property-names/class/static/method-string': [FAIL, FAIL_SLOPPY],
 
-  # new.target
-  # https://code.google.com/p/v8/issues/detail?id=3887
-  'language/expressions/arrow-function/lexical-new.target': [FAIL],
-  'language/expressions/arrow-function/lexical-new.target-closure-returned': [FAIL],
-
   # https://code.google.com/p/v8/issues/detail?id=2160
   'language/expressions/arrow-function/syntax/arrowparameters-cover-initialize-1': [FAIL],
   'language/expressions/arrow-function/syntax/arrowparameters-cover-initialize-2': [FAIL],