[es6] implement destructuring assignment

src/flag-definitions.h

Index: src/flag-definitions.h
diff --git a/src/flag-definitions.h b/src/flag-definitions.h
index 55e0c77909fd0c17fea83ec0cb6c916225fa8ba5..c423510c5760232287dd2782d10e9afafcb10df3 100644
--- a/src/flag-definitions.h
+++ b/src/flag-definitions.h
@@ -202,7 +202,8 @@ DEFINE_IMPLICATION(es_staging, harmony_destructuring)
   V(harmony_sharedarraybuffer, "harmony sharedarraybuffer")           \
   V(harmony_simd, "harmony simd")                                     \
   V(harmony_do_expressions, "harmony do-expressions")                 \
-  V(harmony_regexp_subclass, "harmony regexp subclassing")
+  V(harmony_regexp_subclass, "harmony regexp subclassing")            \
+  V(harmony_destructuring_assignment, "harmony destructuring assignment")
 
 // Features that are complete (but still behind --harmony/es-staging flag).
 #define HARMONY_STAGED(V)                                     \
@@ -674,7 +675,7 @@ DEFINE_INT(min_progress_during_incremental_marking_finalization, 32,
 DEFINE_INT(max_incremental_marking_finalization_rounds, 3,
            "at most try this many times to finalize incremental marking")
 DEFINE_BOOL(concurrent_sweeping, true, "use concurrent sweeping")
-DEFINE_BOOL(parallel_compaction, false, "use parallel compaction")
+DEFINE_BOOL(parallel_compaction, true, "use parallel compaction")

[adamk, 2015/11/20 22:42:58]

Looks like a stray change here

[caitp (gmail), 2015/11/20 23:10:25]

It's from a rebase, so not everything in the inter diff is mine

[adamk, 2015/11/20 23:16:54]

This shows up in the whole diff, not the interdiff.

 DEFINE_BOOL(trace_incremental_marking, false,
             "trace progress of the incremental marking")
 DEFINE_BOOL(track_gc_object_stats, false,