[es6] Ensure that for-in/of loops have a proper TDZ for their boundnames

test/test262-es6/test262-es6.status

Index: test/test262-es6/test262-es6.status
diff --git a/test/test262-es6/test262-es6.status b/test/test262-es6/test262-es6.status
index 8996c224411505d8c3fc5d793d59d1d9e7040e6d..725795640e7411f765ea35c8a3c49f9cf5ab5c00 100644
--- a/test/test262-es6/test262-es6.status
+++ b/test/test262-es6/test262-es6.status
@@ -464,12 +464,6 @@
   # https://code.google.com/p/v8/issues/detail?id=3673
   'language/statements/class/definition/basics': [FAIL],
 
-  # https://code.google.com/p/v8/issues/detail?id=4210
-  'language/statements/for-in/const-bound-names-fordecl-tdz-for-in': [PASS, FAIL],
-  'language/statements/for-in/let-bound-names-fordecl-tdz-for-in': [PASS, FAIL],
-  'language/statements/for-of/const-bound-names-fordecl-tdz-for-of': [PASS, FAIL],
-  'language/statements/for-of/let-bound-names-fordecl-tdz-for-of': [PASS, FAIL],
-
   # Destructuring
   # https://code.google.com/p/v8/issues/detail?id=811
   'language/statements/for-of/body-dstr-assign': [FAIL],