Remove unnecessary ASTContext parameter from FunctionDecl::isBuiltinID

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@81590 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaChecking.cpp b/lib/Sema/SemaChecking.cpp
index 5faafad..a8a6095 100644
--- a/lib/Sema/SemaChecking.cpp
+++ b/lib/Sema/SemaChecking.cpp
@@ -323,7 +323,7 @@
   // values (0, 1 or 2) followed by a potentially empty varags list of stuff
   // that we ignore.  Find out which row of BuiltinIndices to read from as well
   // as the number of fixed args.
-  unsigned BuiltinID = FDecl->getBuiltinID(Context);
+  unsigned BuiltinID = FDecl->getBuiltinID();
   unsigned BuiltinIndex, NumFixed = 1;
   switch (BuiltinID) {
   default: assert(0 && "Unknown overloaded atomic builtin!");