Shorter code for simple type comparisons.

runtime/vm/flow_graph_compiler_x64.h

 // 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.
 
 #ifndef VM_FLOW_GRAPH_COMPILER_X64_H_
 #define VM_FLOW_GRAPH_COMPILER_X64_H_
 
 #ifndef VM_FLOW_GRAPH_COMPILER_H_
 #error Include flow_graph_compiler.h instead of flow_graph_compiler_x64.h.
 #endif
@@ skipping 209 matching lines @@
                                                 Label* is_instance_lbl,
                                                 Label* is_not_instance_lbl);
 
   RawSubtypeTestCache* GenerateInstantiatedTypeWithArgumentsTest(
       intptr_t cid,
       intptr_t token_pos,
       const AbstractType& dst_type,
       Label* is_instance_lbl,
       Label* is_not_instance_lbl);
 
-  void GenerateInstantiatedTypeNoArgumentsTest(intptr_t cid,
+  bool GenerateInstantiatedTypeNoArgumentsTest(intptr_t cid,
                                                intptr_t token_pos,
                                                const AbstractType& dst_type,
                                                Label* is_instance_lbl,
                                                Label* is_not_instance_lbl);
 
   RawSubtypeTestCache* GenerateUninstantiatedTypeTest(
       intptr_t cid,
       intptr_t token_pos,
       const AbstractType& dst_type,
       Label* is_instance_lbl,
@@ skipping 66 matching lines @@
   // that should be used when deoptimizing we store it in this variable.
   // In future AddDeoptStub should be moved out of the instruction template.
   Environment* pending_deoptimization_env_;
 
   DISALLOW_COPY_AND_ASSIGN(FlowGraphCompiler);
 };
 
 }  // namespace dart
 
 #endif  // VM_FLOW_GRAPH_COMPILER_X64_H_