Remove unnecessary const away cast in LateTemplateParserCallback.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@130058 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaTemplateInstantiateDecl.cpp b/lib/Sema/SemaTemplateInstantiateDecl.cpp
index c972c66..c4e171e 100644
--- a/lib/Sema/SemaTemplateInstantiateDecl.cpp
+++ b/lib/Sema/SemaTemplateInstantiateDecl.cpp
@@ -2273,7 +2273,7 @@
   // a templated function definition. 
   if (!Pattern && PatternDecl && PatternDecl->isLateTemplateParsed() &&
       LateTemplateParser) {
-    LateTemplateParser(OpaqueParser, (FunctionDecl*)PatternDecl);
+    LateTemplateParser(OpaqueParser, PatternDecl);
     Pattern = PatternDecl->getBody(PatternDecl);
   }