Getting rid of ExitContextStatement for scoped blocks.

src/parser.cc

Index: src/parser.cc
diff --git a/src/parser.cc b/src/parser.cc
index 4371093e8669768686fd80418b886b35f6fa4494..a79d5ff3678d48472adb76d69833c051edc8b7ad 100644
--- a/src/parser.cc
+++ b/src/parser.cc
@@ -1585,16 +1585,7 @@ Block* Parser::ParseScopedBlock(ZoneStringList* labels, bool* ok) {
 
   block_scope = block_scope->FinalizeBlockScope();
   body->set_block_scope(block_scope);
-
-  if (block_scope != NULL) {
-    // Rewrite the block { B } to a block: { { B } ExitContext; }
-    Block* exit = new(zone()) Block(isolate(), NULL, 2, false);
-    exit->AddStatement(body);
-    exit->AddStatement(new(zone()) ExitContextStatement());
-    return exit;
-  } else {
-    return body;
-  }
+  return body;
 }