[wasm] Implement frame printing for debug

src/wasm/wasm-objects.cc

Index: src/wasm/wasm-objects.cc
diff --git a/src/wasm/wasm-objects.cc b/src/wasm/wasm-objects.cc
index 19d48aa04b3b2eec7cfc9df9e10c30f4f0b08ffe..9a6f1b01da7ea68191dd16c0eba08e3145032080 100644
--- a/src/wasm/wasm-objects.cc
+++ b/src/wasm/wasm-objects.cc
@@ -312,7 +312,7 @@ Handle<WasmCompiledModule> WasmCompiledModule::New(
 }
 
 wasm::WasmModule* WasmCompiledModule::module() const {
-  return reinterpret_cast<WasmModuleWrapper*>(*module_wrapper())->get();
+  return reinterpret_cast<WasmModuleWrapper*>(ptr_to_module_wrapper())->get();
 }
 
 void WasmCompiledModule::InitId() {
@@ -365,3 +365,15 @@ uint32_t WasmCompiledModule::mem_size() const {
 uint32_t WasmCompiledModule::default_mem_size() const {
   return min_mem_pages() * WasmModule::kPageSize;
 }
+
+Vector<const uint8_t> WasmCompiledModule::GetRawFunctionName(
+    uint32_t func_index) {
+  DCHECK_GT(module()->functions.size(), func_index);
+  WasmFunction& function = module()->functions[func_index];
+  SeqOneByteString* bytes = ptr_to_module_bytes();
+  DCHECK_GE(static_cast<size_t>(bytes->length()), function.name_offset);
+  DCHECK_GE(static_cast<size_t>(bytes->length() - function.name_offset),
+            function.name_length);
+  return Vector<const uint8_t>(bytes->GetCharsAddress() + function.name_offset,
+                               function.name_length);
+}