Reverting r2970 to fix Dartium break

runtime/vm/parser.cc

Index: runtime/vm/parser.cc
diff --git a/runtime/vm/parser.cc b/runtime/vm/parser.cc
index d15b44f3d63fd0364a4abdd5795d57a911258692..c0e7e6554594525c0f41cb6feca63f2b8f19260e 100644
--- a/runtime/vm/parser.cc
+++ b/runtime/vm/parser.cc
@@ -1834,7 +1834,6 @@ SequenceNode* Parser::ParseFunc(const Function& func,
     }
   }
 
-  OpenBlock();  // Open a nested scope for the outermost function block.
   if (CurrentToken() == Token::kLBRACE) {
     ConsumeToken();
     ParseStatementSequence();
@@ -1850,8 +1849,6 @@ SequenceNode* Parser::ParseFunc(const Function& func,
   } else {
     UnexpectedToken();
   }
-  SequenceNode* body = CloseBlock();
-  current_block_->statements->Add(body);
   return CloseBlock();
 }