Simplify and improve optimization of is-tests in the precompiler.

runtime/vm/aot_optimizer.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_AOT_OPTIMIZER_H_
 #define VM_AOT_OPTIMIZER_H_
 
 #include "vm/intermediate_language.h"
 #include "vm/flow_graph.h"
 
@@ skipping 145 matching lines @@
   bool TryStringLengthOneEquality(InstanceCallInstr* call, Token::Kind op_kind);
 
   RawField* GetField(intptr_t class_id, const String& field_name);
 
   Thread* thread() const { return flow_graph_->thread(); }
   Isolate* isolate() const { return flow_graph_->isolate(); }
   Zone* zone() const { return flow_graph_->zone(); }
 
   const Function& function() const { return flow_graph_->function(); }
 
-  bool IsBlackListedForInlining(intptr_t deopt_id);
+  bool IsAllowedForInlining(intptr_t deopt_id);
 
   FlowGraph* flow_graph_;
 
   const bool use_speculative_inlining_;
 
   GrowableArray<intptr_t>* inlining_black_list_;
 
   DISALLOW_COPY_AND_ASSIGN(AotOptimizer);
 };
 
 
 }  // namespace dart
 
 #endif  // VM_AOT_OPTIMIZER_H_