Revert of Add WasmFrame, backtraces reflect wasm's presence

src/frames.cc

Index: src/frames.cc
diff --git a/src/frames.cc b/src/frames.cc
index b88b73da8db84d033ea628ed312e0a25d72f8123..50a2e21a055d7a9d8f11442f6cfa024d555c71dc 100644
--- a/src/frames.cc
+++ b/src/frames.cc
@@ -134,10 +134,12 @@
 #undef FRAME_TYPE_CASE
 }
 
+
 // -------------------------------------------------------------------------
 
-JavaScriptFrameIterator::JavaScriptFrameIterator(Isolate* isolate,
-                                                 StackFrame::Id id)
+
+JavaScriptFrameIterator::JavaScriptFrameIterator(
+    Isolate* isolate, StackFrame::Id id)
     : iterator_(isolate) {
   while (!done()) {
     Advance();
@@ -444,7 +446,7 @@
       case Code::OPTIMIZED_FUNCTION:
         return OPTIMIZED;
       case Code::WASM_FUNCTION:
-        return WASM;
+        return STUB;
       case Code::BUILTIN:
         if (!marker->IsSmi()) {
           if (StandardFrame::IsArgumentsAdaptorFrame(state->fp)) {
@@ -1220,20 +1222,6 @@
   accumulator->Add((mode == OVERVIEW) ? "%5d: " : "[%d]: ", index);
 }
 
-void WasmFrame::Print(StringStream* accumulator, PrintMode mode,
-                      int index) const {
-  accumulator->Add("wasm frame");
-}
-
-Code* WasmFrame::unchecked_code() const {
-  return static_cast<Code*>(isolate()->FindCodeObject(pc()));
-}
-
-void WasmFrame::Iterate(ObjectVisitor* v) const { IterateCompiledFrame(v); }
-
-Address WasmFrame::GetCallerStackPointer() const {
-  return fp() + ExitFrameConstants::kCallerSPDisplacement;
-}
 
 namespace {