[Compiler] Fix setting shared function info flags from literal for asm_wasm.

BUG=chromium:743622

Change-Id: Ic29a39d5976425eda2358c7e5ace0efa1b78a718
Reviewed-on: https://chromium-review.googlesource.com/574604Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46714}

src/compiler.cc

@@ -422,6 +422,7 @@ bool GenerateUnoptimizedCode(CompilationInfo* info) {
     MaybeHandle<FixedArray> wasm_data;
     wasm_data = AsmJs::CompileAsmViaWasm(info);
     if (!wasm_data.is_null()) {
+      SetSharedFunctionFlagsFromLiteral(info->literal(), info->shared_info());
       info->shared_info()->set_asm_wasm_data(*wasm_data.ToHandleChecked());
       info->SetCode(info->isolate()->builtins()->InstantiateAsmJs());
       InstallUnoptimizedCode(info);

test/mjsunit/regress/regress-743622.js

+// Copyright 2017 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.
+
+// Flags: --validate-asm
+
+function Module(stdlib, foreign, heap) {
+  "use asm";
+  var a = stdlib.Math.PI;
+  function f() { return a }
+  return { f:f };
+}
+Module.length