Ship ES2015 sloppy-mode const semantics

test/test262/test262.status

 # Copyright 2011 the V8 project authors. All rights reserved.
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 # modification, are permitted provided that the following conditions are
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@@ skipping 44 matching lines @@
   'language/block-scope/shadowing/dynamic-lookup-from-closure': [PASS],
   'language/block-scope/shadowing/lookup-from-closure': [PASS],
   'language/block-scope/syntax/redeclaration-in-block/attempt-to-redeclare-function-declaration-with-function-declaration': [PASS],
   'language/block-scope/syntax/redeclaration-in-block/attempt-to-redeclare-function-declaration-with-var': [PASS],
   'language/block-scope/syntax/redeclaration-in-block/attempt-to-redeclare-var-with-function-declaration': [PASS],
   'language/statements/let/block-local-closure-set-before-initialization': [PASS],
 
   # 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],
 
-  # https://code.google.com/p/v8/issues/detail?id=3305
-  # This times out in sloppy mode because sloppy const assignment does not throw.
-  'language/statements/const/syntax/const-invalid-assignment-next-expression-for': [SKIP],
-
   # It's unclear what the right behavior for [[Enumerate]] is; we're awaiting
   # clarification in the spec. Currently, our for-in implementation for
   # Proxies checks all trap result values for being strings...
   'built-ins/Proxy/enumerate/return-trap-result': [FAIL],
   # ...and our Reflect.enumerate implementation is built on for-in by wrapping
   # the iteration's results in a new generator; this postpones exceptions.
   'built-ins/Reflect/enumerate/return-abrupt-from-result': [FAIL],
 
   # https://code.google.com/p/v8/issues/detail?id=4093
   'built-ins/Array/symbol-species': [FAIL],
@@ skipping 661 matching lines @@
   'built-ins/decodeURIComponent/S15.1.3.2_A1.2_T2': [SKIP],
   'built-ins/encodeURI*': [SKIP],
   'intl402/9.2.2': [SKIP],
   'language/statements/let/fn-name-arrow': [SKIP],
   'language/statements/let/fn-name-cover': [SKIP],
   'language/statements/let/fn-name-fn': [SKIP],
   'language/statements/let/fn-name-gen': [SKIP],
 }],  # ignition == True and (arch == arm or arch == arm64)
 
 ]