[MERGE #2272 @obastemur] asmjs: anonymous function crash

Merge pull request #2272 from obastemur:fix_asmjs_crash

Author: obastemur

lib/Jsrt/ChakraCore.h

@@ -163,6 +163,7 @@ JsGetModuleHostInfo(
     _In_ JsModuleHostInfoKind moduleHostInfo,
     _Outptr_result_maybenull_ void** hostInfo);
 
+#ifdef CHAKRACOREBUILD_
 /// <summary>
 ///     Called by the runtime to load the source code of the serialized script.
 /// </summary>
@@ -493,5 +494,5 @@ CHAKRA_API
         _In_ JsSourceContext sourceContext,
         _In_ JsValueRef sourceUrl,
         _Out_ JsValueRef *result);
-
+#endif // CHAKRACOREBUILD_
 #endif // _CHAKRACORE_H_

lib/Runtime/Language/AsmJsModule.cpp

@@ -1080,6 +1080,11 @@ namespace Js
     AsmJsFunc* AsmJsModuleCompiler::CreateNewFunctionEntry( ParseNode* pnodeFnc )
     {
         PropertyName name = ParserWrapper::FunctionName( pnodeFnc );
+        if ( !name )
+        {
+            return nullptr;
+        }
+
         GetByteCodeGenerator()->AssignPropertyId(name);
         AsmJsFunc* func = Anew( &mAllocator, AsmJsFunc, name, pnodeFnc, &mAllocator, mCx->scriptContext );
         if( func )

test/AsmJs/bugGH2270.js

@@ -0,0 +1,11 @@
+//-------------------------------------------------------------------------------------------------------
+// Copyright (C) Microsoft. All rights reserved.
+// Licensed under the MIT license. See LICENSE.txt file in the project root for full license information.
+//-------------------------------------------------------------------------------------------------------
+
+(function() {
+    "use asm";
+    (function(){});
+})();
+
+print("Pass");

test/AsmJs/rlexe.xml

@@ -813,5 +813,8 @@
       <baseline>vardeclnorhs.baseline</baseline>
       <compile-flags>-testtrace:asmjs -maic:1</compile-flags>
     </default>
+    <default>
+      <files>bugGH2270.js</files>
+    </default>
   </test>
 </regress-exe>