[liveedit] reimplement frame restarting.

src/compiler/bytecode-graph-builder.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/bytecode-graph-builder.h"
 
 #include "src/ast/ast.h"
 #include "src/ast/scopes.h"
 #include "src/compilation-info.h"
 #include "src/compiler/compiler-source-position-table.h"
@@ skipping 1801 matching lines @@
 void BytecodeGraphBuilder::VisitReturn() {
   BuildLoopExitsForFunctionExit();
   Node* pop_node = jsgraph()->ZeroConstant();
   Node* control =
       NewNode(common()->Return(), pop_node, environment()->LookupAccumulator());
   MergeControlToLeaveFunction(control);
 }
 
 void BytecodeGraphBuilder::VisitDebugger() {
   PrepareEagerCheckpoint();
-  Node* call =
-      NewNode(javascript()->CallRuntime(Runtime::kHandleDebuggerStatement));
-  environment()->BindAccumulator(call, Environment::kAttachFrameState);
+  Node* call = NewNode(javascript()->Debugger());
+  environment()->RecordAfterState(call, Environment::kAttachFrameState);
 }
 
 // We cannot create a graph from the debugger copy of the bytecode array.
 #define DEBUG_BREAK(Name, ...) \
   void BytecodeGraphBuilder::Visit##Name() { UNREACHABLE(); }
 DEBUG_BREAK_BYTECODE_LIST(DEBUG_BREAK);
 #undef DEBUG_BREAK
 
 void BytecodeGraphBuilder::BuildForInPrepare() {
   PrepareEagerCheckpoint();
@@ skipping 465 matching lines @@
         it->source_position().ScriptOffset(), start_position_.InliningId()));
     it->Advance();
   } else {
     DCHECK_GT(it->code_offset(), offset);
   }
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8