[wasm] Provide better stack traces for asm.js code

src/asmjs/asm-js.cc

 // Copyright 2015 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.
 
 #include "src/asmjs/asm-js.h"
 
 #include "src/api-natives.h"
 #include "src/api.h"
 #include "src/asmjs/asm-typer.h"
 #include "src/asmjs/asm-wasm-builder.h"
@@ skipping 144 matching lines @@
   wasm::AsmTyper typer(info->isolate(), info->zone(), *(info->script()),
                        info->literal());
   if (!typer.Validate()) {
     DCHECK(!info->isolate()->has_pending_exception());
     PrintF("Validation of asm.js module failed: %s", typer.error_message());
     return MaybeHandle<FixedArray>();
   }
   v8::internal::wasm::AsmWasmBuilder builder(info->isolate(), info->zone(),
                                              info->literal(), &typer);
   i::Handle<i::FixedArray> foreign_globals;
-  auto module = builder.Run(&foreign_globals);
+  auto asm_wasm_result = builder.Run(&foreign_globals);
+  wasm::ZoneBuffer* module = asm_wasm_result.module_bytes;
+  wasm::ZoneBuffer* asm_offsets = asm_wasm_result.asm_offset_table;
 
   i::MaybeHandle<i::JSObject> compiled = wasm::CreateModuleObjectFromBytes(
       info->isolate(), module->begin(), module->end(), &thrower,
-      internal::wasm::kAsmJsOrigin);
+      internal::wasm::kAsmJsOrigin, info->script(), asm_offsets->begin(),
+      asm_offsets->end());
   DCHECK(!compiled.is_null());
 
   wasm::AsmTyper::StdlibSet uses = typer.StdlibUses();
   Handle<FixedArray> uses_array =
       info->isolate()->factory()->NewFixedArray(static_cast<int>(uses.size()));
   int count = 0;
   for (auto i : uses) {
     uses_array->set(count++, Smi::FromInt(i));
   }
 
@@ skipping 72 matching lines @@
       i::Object::GetProperty(module_object, single_function_name);
   if (!single_function.is_null() &&
       !single_function.ToHandleChecked()->IsUndefined(isolate)) {
     return single_function;
   }
   return module_object;
 }
 
 }  // namespace internal
 }  // namespace v8