Revert "Stage sloppy block-scoped functions (Annex B 3.3)"

The current implemention breaks sloppy mode code that uses function
declarations inside blocks at top-level. Work is ongoing on a patch
to fix this issue, but in the meantime it seems reasonable to move
the feature out of staging.

Manual revert of commit 6e07f5a7.

R=littledan@chromium.org
BUG=chromium:535836
LOG=y

Review URL: https://codereview.chromium.org/1375213005

Cr-Commit-Position: refs/heads/master@{#31029}

src/flag-definitions.h

@@ -188,16 +188,17 @@ DEFINE_IMPLICATION(es_staging, harmony)
 DEFINE_BOOL(legacy_const, true, "legacy semantics for const in sloppy mode")
 
 // Features that are still work in progress (behind individual flags).
-#define HARMONY_INPROGRESS(V)                                 \
-  V(harmony_modules, "harmony modules")                       \
-  V(harmony_regexps, "harmony regular expression extensions") \
-  V(harmony_proxies, "harmony proxies")                       \
-  V(harmony_unicode_regexps, "harmony unicode regexps")       \
-  V(harmony_tolength, "harmony ToLength")                     \
-  V(harmony_reflect, "harmony Reflect API")                   \
-  V(harmony_destructuring, "harmony destructuring")           \
-  V(harmony_default_parameters, "harmony default parameters") \
-  V(harmony_sharedarraybuffer, "harmony sharedarraybuffer")   \
+#define HARMONY_INPROGRESS(V)                                         \
+  V(harmony_modules, "harmony modules")                               \
+  V(harmony_regexps, "harmony regular expression extensions")         \
+  V(harmony_proxies, "harmony proxies")                               \
+  V(harmony_unicode_regexps, "harmony unicode regexps")               \
+  V(harmony_tolength, "harmony ToLength")                             \
+  V(harmony_reflect, "harmony Reflect API")                           \
+  V(harmony_sloppy_function, "harmony sloppy function block scoping") \
+  V(harmony_destructuring, "harmony destructuring")                   \
+  V(harmony_default_parameters, "harmony default parameters")         \
+  V(harmony_sharedarraybuffer, "harmony sharedarraybuffer")           \
   V(harmony_simd, "harmony simd")
 
 // Features that are complete (but still behind --harmony/es-staging flag).
@@ -205,7 +206,6 @@ DEFINE_BOOL(legacy_const, true, "legacy semantics for const in sloppy mode")
   V(harmony_tostring, "harmony toString")                             \
   V(harmony_concat_spreadable, "harmony isConcatSpreadable")          \
   V(harmony_sloppy, "harmony features in sloppy mode")                \
-  V(harmony_sloppy_function, "harmony sloppy function block scoping") \
   V(harmony_sloppy_let, "harmony let in sloppy mode")
 
 // Features that are shipping (turned on by default, but internal flag remains).

test/test262/test262.status

@@ -113,6 +113,15 @@
   'language/statements/for-of/const-bound-names-fordecl-tdz-for-of': [PASS, FAIL_SLOPPY],
   'language/statements/for-of/const-fresh-binding-per-iteration-for-of': [PASS, FAIL_SLOPPY],
 
+  # Functions in blocks are var-declared and hoisted in sloppy mode
+  # https://code.google.com/p/v8/issues/detail?id=3305
+  'language/block-scope/shadowing/dynamic-lookup-from-closure': [PASS, FAIL_SLOPPY],
+  'language/block-scope/shadowing/lookup-from-closure': [PASS, FAIL_SLOPPY],
+  'language/block-scope/syntax/redeclaration-in-block/attempt-to-redeclare-function-declaration-with-function-declaration': [PASS, FAIL_SLOPPY],
+  'language/block-scope/syntax/redeclaration-in-block/attempt-to-redeclare-function-declaration-with-var': [PASS, FAIL_SLOPPY],
+  'language/block-scope/syntax/redeclaration-in-block/attempt-to-redeclare-var-with-function-declaration': [PASS, FAIL_SLOPPY],
+  'language/statements/let/block-local-closure-set-before-initialization': [PASS, FAIL_SLOPPY],
+
   # https://code.google.com/p/v8/issues/detail?id=4405
   'language/block-scope/leave/outermost-binding-updated-in-catch-block-nested-block-let-declaration-unseen-outside-of-block': [PASS, FAIL],