[wasm] Introduce WasmToInterpreterFrame

src/frames-inl.h

 // Copyright 2012 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_FRAMES_INL_H_
 #define V8_FRAMES_INL_H_
 
 #include "src/frames.h"
 #include "src/isolate.h"
 #include "src/objects-inl.h"
@@ skipping 234 matching lines @@
     : JavaScriptFrame(iterator) {}
 
 
 inline ArgumentsAdaptorFrame::ArgumentsAdaptorFrame(
     StackFrameIteratorBase* iterator) : JavaScriptFrame(iterator) {
 }
 
 inline BuiltinFrame::BuiltinFrame(StackFrameIteratorBase* iterator)
     : JavaScriptFrame(iterator) {}
 
-inline WasmFrame::WasmFrame(StackFrameIteratorBase* iterator)
+inline WasmCompiledFrame::WasmCompiledFrame(StackFrameIteratorBase* iterator)
+    : StandardFrame(iterator) {}
+
+inline WasmToInterpreterFrame::WasmToInterpreterFrame(
+    StackFrameIteratorBase* iterator)
     : StandardFrame(iterator) {}
 
 inline WasmToJsFrame::WasmToJsFrame(StackFrameIteratorBase* iterator)
     : StubFrame(iterator) {}
 
 inline JsToWasmFrame::JsToWasmFrame(StackFrameIteratorBase* iterator)
     : StubFrame(iterator) {}
 
 inline InternalFrame::InternalFrame(StackFrameIteratorBase* iterator)
     : StandardFrame(iterator) {
@@ skipping 38 matching lines @@
   return static_cast<StandardFrame*>(frame);
 }
 
 bool StackTraceFrameIterator::is_javascript() const {
   return frame()->is_java_script();
 }
 
 bool StackTraceFrameIterator::is_wasm() const { return frame()->is_wasm(); }
 
 JavaScriptFrame* StackTraceFrameIterator::javascript_frame() const {
-  DCHECK(is_javascript());
-  return static_cast<JavaScriptFrame*>(frame());
+  return JavaScriptFrame::cast(frame());
 }
 
-WasmFrame* StackTraceFrameIterator::wasm_frame() const {
-  DCHECK(is_wasm());
-  return static_cast<WasmFrame*>(frame());
+WasmCompiledFrame* StackTraceFrameIterator::wasm_compiled_frame() const {
+  return WasmCompiledFrame::cast(frame());
 }
 
 inline StackFrame* SafeStackFrameIterator::frame() const {
   DCHECK(!done());
   DCHECK(frame_->is_java_script() || frame_->is_exit() ||
          frame_->is_builtin_exit());
   return frame_;
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_FRAMES_INL_H_