[interpreter, debugger] support debug breaks via bytecode array copy

src/interpreter/interpreter.h

Index: src/interpreter/interpreter.h
diff --git a/src/interpreter/interpreter.h b/src/interpreter/interpreter.h
index b235f0ae0f9541a22ef575e00336cad23dc38436..a0ded1daa8a54ed0c7eba70092e91101506d46e4 100644
--- a/src/interpreter/interpreter.h
+++ b/src/interpreter/interpreter.h
@@ -36,6 +36,8 @@ class Interpreter {
   // Generate bytecode for |info|.
   static bool MakeBytecode(CompilationInfo* info);
 
+  Code* GetHandler(Bytecode bytecode);

[rmcilroy, 2016/02/16 10:46:38]

GetBytecodeHandler and add a comment please 

[Yang, 2016/02/19 13:09:18]

Done.

+
   // GC support.
   void IterateDispatchTable(ObjectVisitor* v);
 
@@ -116,12 +118,14 @@ class Interpreter {
   void DoStoreLookupSlot(LanguageMode language_mode,
                          InterpreterAssembler* assembler);
 
+  void DoDebugBreak(InterpreterAssembler* assembler);
+
   bool IsDispatchTableInitialized();
 
   static const int kDispatchTableSize = static_cast<int>(Bytecode::kLast) + 1;
 
   Isolate* isolate_;
-  Object* dispatch_table_[kDispatchTableSize];
+  Code* dispatch_table_[kDispatchTableSize];
 
   DISALLOW_COPY_AND_ASSIGN(Interpreter);
 };