[interpreter, debugger] implement debugger statement.

src/compiler/interpreter-assembler.cc

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/compiler/interpreter-assembler.h"
 
 #include <ostream>
 
 #include "src/code-factory.h"
 #include "src/compiler/graph.h"
@@ skipping 566 matching lines @@
 
   Node** args = zone()->NewArray<Node*>(4);
   args[0] = arg_count;
   args[1] = first_arg;
   args[2] = function_entry;
   args[3] = GetContext();
 
   return CallN(descriptor, code_target, args);
 }
 
+Node* InterpreterAssembler::CallRuntime(Runtime::FunctionId function_id) {
+  CallPrologue();
+  Node* return_val = raw_assembler_->CallRuntime0(function_id, GetContext());
+  return return_val;
+}
 
 Node* InterpreterAssembler::CallRuntime(Runtime::FunctionId function_id,
                                         Node* arg1) {
   CallPrologue();
   Node* return_val =
       raw_assembler_->CallRuntime1(function_id, arg1, GetContext());
   return return_val;
 }
 
 
@@ skipping 154 matching lines @@
   return raw_assembler_->call_descriptor();
 }
 
 
 Zone* InterpreterAssembler::zone() { return raw_assembler_->zone(); }
 
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8