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

test/cctest/wasm/test-run-wasm.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 <stdint.h>
 #include <stdlib.h>
 #include <string.h>
 
 #include "src/wasm/wasm-macro-gen.h"
 
@@ skipping 1492 matching lines @@
   }
 
   for (uint32_t offset = 0x80000000; offset < 0x80000010; offset++) {
     CHECK_TRAP(r.Call(offset));
   }
 }
 
 
 TEST(Run_Wasm_LoadMemI32_oob_asm) {
   TestingModule module;
-  module.asm_js = true;
+  module.origin = kAsmJsOrigin;
   int32_t* memory = module.AddMemoryElems<int32_t>(8);
   WasmRunner<int32_t> r(&module, MachineType::Uint32());
   module.RandomizeMemory(1112);
 
   BUILD(r, WASM_LOAD_MEM(MachineType::Int32(), WASM_GET_LOCAL(0)));
 
   memory[0] = 999999;
   CHECK_EQ(999999, r.Call(0u));
   // TODO(titzer): offset 29-31 should also be OOB.
   for (uint32_t offset = 32; offset < 40; offset++) {
@@ skipping 1858 matching lines @@
 
 #if WASM_64
 TEST(Compile_Wasm_CallIndirect_Many_i64) { CompileCallIndirectMany(kAstI64); }
 #endif
 
 
 TEST(Compile_Wasm_CallIndirect_Many_f32) { CompileCallIndirectMany(kAstF32); }
 
 
 TEST(Compile_Wasm_CallIndirect_Many_f64) { CompileCallIndirectMany(kAstF64); }