Remove redundant argument.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148628 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaAttr.cpp b/lib/Sema/SemaAttr.cpp
index 6aae8db..0859cb7 100644
--- a/lib/Sema/SemaAttr.cpp
+++ b/lib/Sema/SemaAttr.cpp
@@ -345,9 +345,9 @@
   Stack->push_back(std::make_pair(type, loc));
 }
 
-void Sema::ActOnPragmaVisibility(bool IsPush, const IdentifierInfo* VisType,
+void Sema::ActOnPragmaVisibility(const IdentifierInfo* VisType,
                                  SourceLocation PragmaLoc) {
-  if (IsPush) {
+  if (VisType) {
     // Compute visibility to use.
     VisibilityAttr::VisibilityType type;
     if (VisType->isStr("default"))