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

test/unittests/wasm/module-decoder-unittest.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 "test/unittests/test-utils.h"
 
 #include "src/wasm/module-decoder.h"
 #include "src/wasm/wasm-opcodes.h"
 
 namespace v8 {
@@ skipping 12 matching lines @@
 #define SIG_INDEX(v) U16(v)
 #define FUNC_INDEX(v) U16(v)
 #define NAME_OFFSET(v) U32(v)
 
 #define EMPTY_FUNCTION(sig_index) 0, SIG_INDEX(sig_index), U16(0)
 
 class WasmModuleVerifyTest : public TestWithZone {
  public:
   ModuleResult DecodeModule(const byte* module_start, const byte* module_end) {
     return DecodeWasmModule(nullptr, zone(), module_start, module_end, false,
-                            false);
+                            kWasmOrigin);
   }
 };
 
 
 #define EXPECT_VERIFIES(data)                                         \
   do {                                                                \
     ModuleResult result = DecodeModule(data, data + arraysize(data)); \
     EXPECT_TRUE(result.ok());                                         \
     if (result.val) delete result.val;                                \
   } while (false)
@@ skipping 1105 matching lines @@
   for (int length = 13; length < sizeof(data); length++) {
     ModuleResult result = DecodeModule(data, data + length);
     EXPECT_FALSE(result.ok());
     if (result.val) delete result.val;
   }
 }
 
 }  // namespace wasm
 }  // namespace internal
 }  // namespace v8