[wasm] Properly plumb the origin of the WASM module from asm.js translation.

src/wasm/wasm-module.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/macro-assembler.h"
 #include "src/objects.h"
 #include "src/v8.h"
 
 #include "src/simulator.h"
 
@@ skipping 260 matching lines @@
 
 WasmModule::WasmModule()
     : shared_isolate(nullptr),
       module_start(nullptr),
       module_end(nullptr),
       min_mem_size_log2(0),
       max_mem_size_log2(0),
       mem_export(false),
       mem_external(false),
       start_function_index(-1),
+      origin(kWasmOrigin),
       globals(nullptr),
       signatures(nullptr),
       functions(nullptr),
       data_segments(nullptr),
       function_table(nullptr),
       import_table(nullptr),
       export_table(nullptr) {}
 
 WasmModule::~WasmModule() {
   if (globals) delete globals;
@@ skipping 91 matching lines @@
   //-------------------------------------------------------------------------
   // Compile wrappers to imported functions.
   //-------------------------------------------------------------------------
   uint32_t index = 0;
   instance.function_table = BuildFunctionTable(isolate, this);
   WasmLinker linker(isolate, functions->size());
   ModuleEnv module_env;
   module_env.module = this;
   module_env.instance = &instance;
   module_env.linker = &linker;
-  module_env.asm_js = false;
+  module_env.origin = origin;
 
   if (import_table->size() > 0) {
     instance.import_code = &import_code;
     instance.import_code->reserve(import_table->size());
     for (const WasmImport& import : *import_table) {
       const char* cstr = GetName(import.function_name_offset);
       Handle<String> name = factory->InternalizeUtf8String(cstr);
       MaybeHandle<JSFunction> function =
           LookupFunction(thrower, ffi, index, name, cstr);
       if (function.is_null()) return MaybeHandle<JSObject>();
@@ skipping 128 matching lines @@
   return GetWasmCallDescriptor(zone, function->sig);
 }
 
 
 int32_t CompileAndRunWasmModule(Isolate* isolate, const byte* module_start,
                                 const byte* module_end, bool asm_js) {
   HandleScope scope(isolate);
   Zone zone;
   // Decode the module, but don't verify function bodies, since we'll
   // be compiling them anyway.
-  ModuleResult result =
-      DecodeWasmModule(isolate, &zone, module_start, module_end, false, false);
+  ModuleResult result = DecodeWasmModule(isolate, &zone, module_start,
+                                         module_end, false, kWasmOrigin);
   if (result.failed()) {
     // Module verification failed. throw.
     std::ostringstream str;
     str << "WASM.compileRun() failed: " << result;
     isolate->Throw(
         *isolate->factory()->NewStringFromAsciiChecked(str.str().c_str()));
     return -1;
   }
 
   int32_t retval = CompileAndRunWasmModule(isolate, result.val);
@@ skipping 19 matching lines @@
 
   // Build the function table.
   instance.function_table = BuildFunctionTable(isolate, module);
 
   // Create module environment.
   WasmLinker linker(isolate, module->functions->size());
   ModuleEnv module_env;
   module_env.module = module;
   module_env.instance = &instance;
   module_env.linker = &linker;
-  module_env.asm_js = false;
+  module_env.origin = module->origin;
 
   // Compile all functions.
   Handle<Code> main_code = Handle<Code>::null();  // record last code.
   uint32_t index = 0;
   int main_index = 0;
   for (const WasmFunction& func : *module->functions) {
     DCHECK_EQ(index, func.func_index);
     if (!func.external) {
       // Compile the function and install it in the code table.
       Handle<Code> code =
@@ skipping 39 matching lines @@
   }
   if (result->IsHeapNumber()) {
     return static_cast<int32_t>(HeapNumber::cast(*result)->value());
   }
   thrower.Error("WASM.compileRun() failed: Return value should be number");
   return -1;
 }
 }  // namespace wasm
 }  // namespace internal
 }  // namespace v8