[wasm] Enable wasm frame inspection for debugging

src/debug/debug-frames.h

 // 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.
 
 #ifndef V8_DEBUG_DEBUG_FRAMES_H_
 #define V8_DEBUG_DEBUG_FRAMES_H_
 
 #include "src/deoptimizer.h"
 #include "src/frames.h"
 #include "src/isolate.h"
 #include "src/objects.h"
 
 namespace v8 {
 namespace internal {
 
 class FrameInspector {
  public:
-  FrameInspector(JavaScriptFrame* frame, int inlined_jsframe_index,
+  FrameInspector(StandardFrame* frame, int inlined_jsframe_index,
                  Isolate* isolate);
 
   ~FrameInspector();
 
   int GetParametersCount();
-  Handle<Object> GetFunction();
+  Handle<JSFunction> GetFunction();
+  Handle<Script> GetScript();
   Handle<Object> GetParameter(int index);
   Handle<Object> GetExpression(int index);
   int GetSourcePosition();
   bool IsConstructor();
   Handle<Object> GetContext();
 
-  JavaScriptFrame* GetArgumentsFrame() { return frame_; }
-  void SetArgumentsFrame(JavaScriptFrame* frame);
+  inline JavaScriptFrame* javascript_frame() {
+    return frame_->is_arguments_adaptor() ? ArgumentsAdaptorFrame::cast(frame_)
+                                          : JavaScriptFrame::cast(frame_);
+  }
+  inline WasmFrame* wasm_frame() { return WasmFrame::cast(frame_); }
+
+  JavaScriptFrame* GetArgumentsFrame() { return javascript_frame(); }
+  void SetArgumentsFrame(StandardFrame* frame);
 
   void MaterializeStackLocals(Handle<JSObject> target,
                               Handle<ScopeInfo> scope_info);
 
   void MaterializeStackLocals(Handle<JSObject> target,
                               Handle<JSFunction> function);
 
   void UpdateStackLocalsFromMaterializedObject(Handle<JSObject> object,
                                                Handle<ScopeInfo> scope_info);
 
  private:
   bool ParameterIsShadowedByContextLocal(Handle<ScopeInfo> info,
                                          Handle<String> parameter_name);
 
-  JavaScriptFrame* frame_;
+  StandardFrame* frame_;
   DeoptimizedFrameInfo* deoptimized_frame_;
   Isolate* isolate_;
   bool is_optimized_;
   bool is_interpreted_;
   bool is_bottommost_;
   bool has_adapted_arguments_;
 
   DISALLOW_COPY_AND_ASSIGN(FrameInspector);
 };
 
 
 class DebugFrameHelper : public AllStatic {
  public:
   static SaveContext* FindSavedContextForFrame(Isolate* isolate,
-                                               JavaScriptFrame* frame);
+                                               StandardFrame* frame);
   // Advances the iterator to the frame that matches the index and returns the
   // inlined frame index, or -1 if not found.  Skips native JS functions.
-  static int FindIndexedNonNativeFrame(JavaScriptFrameIterator* it, int index);
+  static int FindIndexedNonNativeFrame(StackTraceFrameIterator* it, int index);
 
   // Helper functions for wrapping and unwrapping stack frame ids.
   static Smi* WrapFrameId(StackFrame::Id id) {
     DCHECK(IsAligned(OffsetFrom(id), static_cast<intptr_t>(4)));
     return Smi::FromInt(id >> 2);
   }
 
   static StackFrame::Id UnwrapFrameId(int wrapped) {
     return static_cast<StackFrame::Id>(wrapped << 2);
   }
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_DEBUG_DEBUG_FRAMES_H_