Repace SmallPtrSet with SmallPtrSetImpl in function arguments to avoid needing to mention the size.

llvm-svn: 215869

clang/lib/Serialization/ModuleManager.cpp

@@ -249,7 +249,7 @@ ModuleManager::~ModuleManager() {
 void
 ModuleManager::visit(bool (*Visitor)(ModuleFile &M, void *UserData),
                      void *UserData,
-                     llvm::SmallPtrSet<ModuleFile *, 4> *ModuleFilesHit) {
+                     llvm::SmallPtrSetImpl<ModuleFile *> *ModuleFilesHit) {
   // If the visitation order vector is the wrong size, recompute the order.
   if (VisitOrder.size() != Chain.size()) {
     unsigned N = size();