Fix additional cross-plat build failure

Author: Thomas Moore (CHAKRA)

lib/Jsrt/Jsrt.cpp

@@ -3975,17 +3975,23 @@ JsErrorCode RunSerializedScriptCore(
         else
         {
             size_t srcLength = 0;
+            Js::FunctionBody* functionBodyLocal = nullptr;
             hr = BGParseManager::GetBGParseManager()->GetParseResults(
                 scriptContext,
                 bgParseCookie,
                 nullptr, // pszSrc
                 hsi,
-                (Field(Js::ParseableFunctionInfo**))(&functionBody),
+                &functionBodyLocal,
                 nullptr, // pse
                 srcLength,
                 nullptr, // utf8sourceinfo
                 sourceIndex
             );
+            
+            if (hr == S_OK)
+            {
+                functionBody = functionBodyLocal;
+            }
         }
 
         if (FAILED(hr))

lib/Parser/BGParseManager.cpp

@@ -248,7 +248,7 @@ HRESULT BGParseManager::GetParseResults(
     DWORD cookie,
     LPCUTF8 pszSrc,
     SRCINFO const * pSrcInfo,
-    Js::ParseableFunctionInfo** ppFunc,
+    Js::FunctionBody** ppFunc,
     CompileScriptException* pse,
     size_t& srcLength,
     Js::Utf8SourceInfo* utf8SourceInfo,

lib/Parser/BGParseManager.h

@@ -58,7 +58,7 @@ class BGParseManager sealed : public JsUtil::WaitableJobManager
         DWORD cookie,
         LPCUTF8 pszSrc,
         SRCINFO const * pSrcInfo,
-        Js::ParseableFunctionInfo** ppFunc,
+        Js::FunctionBody** ppFunc,
         CompileScriptException* pse,
         size_t& srcLength,
         Js::Utf8SourceInfo* utf8SourceInfo,