Print messages when aborting background compilation (--trace-compiler); turn on background compilat…

runtime/vm/parser.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/parser.h"
 #include "vm/flags.h"
 
 #ifndef DART_PRECOMPILED_RUNTIME
 
 #include "lib/invocation_mirror.h"
@@ skipping 2446 matching lines @@
 
 StaticCallNode* Parser::ParseSuperInitializer(const Class& cls,
                                               LocalVariable* receiver) {
   TRACE_PARSER("ParseSuperInitializer");
   ASSERT(CurrentToken() == Token::kSUPER);
   const TokenPosition supercall_pos = TokenPos();
   ConsumeToken();
   const Class& super_class = Class::Handle(Z, cls.SuperClass());
   ASSERT(!super_class.IsNull());
   String& ctor_name = String::Handle(Z, super_class.Name());
-  ctor_name = String::Concat(ctor_name, Symbols::Dot());
+  ctor_name =  Symbols::FromConcat(T, ctor_name, Symbols::Dot());
   if (CurrentToken() == Token::kPERIOD) {
     ConsumeToken();
     ctor_name = Symbols::FromConcat(T,
         ctor_name, *ExpectIdentifier("constructor name expected"));
   }
   CheckToken(Token::kLPAREN, "parameter list expected");
 
   ArgumentListNode* arguments = new ArgumentListNode(supercall_pos);
   // 'this' parameter is the first argument to super class constructor.
   AstNode* implicit_argument = new LoadLocalNode(supercall_pos, receiver);
@@ skipping 11998 matching lines @@
     const ArgumentListNode& function_args,
     const LocalVariable* temp_for_last_arg,
     bool is_super_invocation) {
   UNREACHABLE();
   return NULL;
 }
 
 }  // namespace dart
 
 #endif  // DART_PRECOMPILED_RUNTIME