[wasm] Implement frame inspection for interpreted frames

src/frames.cc

Index: src/frames.cc
diff --git a/src/frames.cc b/src/frames.cc
index 5c561e6e7b4cb4d853336874a091933d05ed3253..c1ef5ee131707e75f759c5dc61fc70a23b8b316a 100644
--- a/src/frames.cc
+++ b/src/frames.cc
@@ -1763,7 +1763,7 @@ void WasmInterpreterEntryFrame::Iterate(ObjectVisitor* v) const {
 void WasmInterpreterEntryFrame::Print(StringStream* accumulator, PrintMode mode,
                                       int index) const {
   PrintIndex(accumulator, mode, index);
-  accumulator->Add("WASM TO INTERPRETER [");
+  accumulator->Add("WASM INTERPRETER ENTRY [");
   Script* script = this->script();
   accumulator->PrintName(script->name());
   accumulator->Add("]");
@@ -1772,8 +1772,15 @@ void WasmInterpreterEntryFrame::Print(StringStream* accumulator, PrintMode mode,
 
 void WasmInterpreterEntryFrame::Summarize(List<FrameSummary>* functions,
                                           FrameSummary::Mode mode) const {
-  // TODO(clemensh): Implement this.
-  UNIMPLEMENTED();
+  Handle<WasmInstanceObject> instance(wasm_instance(), isolate());
+  std::vector<std::pair<uint32_t, int>> interpreted_stack =
+      instance->debug_info()->GetInterpretedStack(fp());
+
+  for (auto& e : interpreted_stack) {
+    FrameSummary::WasmInterpretedFrameSummary summary(isolate(), instance,
+                                                      e.first, e.second);
+    functions->Add(summary);
+  }
 }
 
 Code* WasmInterpreterEntryFrame::unchecked_code() const {