[wasm] Implement frame inspection for interpreted frames

src/wasm/wasm-objects.h

Index: src/wasm/wasm-objects.h
diff --git a/src/wasm/wasm-objects.h b/src/wasm/wasm-objects.h
index 1765d139b6bedcd818eb66154b91b6ef42b09622..29d12dd2ccba02ab00bc394058dced283ecdc666 100644
--- a/src/wasm/wasm-objects.h
+++ b/src/wasm/wasm-objects.h
@@ -14,6 +14,7 @@
 namespace v8 {
 namespace internal {
 namespace wasm {
+class InterpretedFrame;
 struct WasmModule;
 }
 
@@ -390,6 +391,10 @@ class WasmCompiledModule : public FixedArray {
   static bool SetBreakPoint(Handle<WasmCompiledModule>, int* position,
                             Handle<Object> break_point_object);
 
+  // Get the BreakLocation identifying the given position. Must only be called
+  // with valid (breakable) positions.
+  BreakLocation GetBreakLocation(int position);
+
   // Return an empty handle if no breakpoint is hit at that location, or a
   // FixedArray with all hit breakpoint objects.
   MaybeHandle<FixedArray> CheckBreakPoints(const BreakLocation& location);
@@ -419,6 +424,12 @@ class WasmDebugInfo : public FixedArray {
   static void RunInterpreter(Handle<WasmDebugInfo>, int func_index,
                              uint8_t* arg_buffer);
 
+  static std::vector<std::pair<uint32_t, int>> GetInterpretedStack(
+      Handle<WasmDebugInfo>, Address frame_pointer);
+
+  static std::unique_ptr<wasm::InterpretedFrame> GetInterpretedFrame(
+      Handle<WasmDebugInfo>, Address frame_pointer, int idx);
+
   DECLARE_GETTER(wasm_instance, WasmInstanceObject);
 };