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

llvm-svn: 216158
diff --git a/llvm/lib/Transforms/ObjCARC/DependencyAnalysis.cpp b/llvm/lib/Transforms/ObjCARC/DependencyAnalysis.cpp
index 08c8842..4cede4f 100644
--- a/llvm/lib/Transforms/ObjCARC/DependencyAnalysis.cpp
+++ b/llvm/lib/Transforms/ObjCARC/DependencyAnalysis.cpp
@@ -206,8 +206,8 @@
 llvm::objcarc::FindDependencies(DependenceKind Flavor,
                                 const Value *Arg,
                                 BasicBlock *StartBB, Instruction *StartInst,
-                                SmallPtrSet<Instruction *, 4> &DependingInsts,
-                                SmallPtrSet<const BasicBlock *, 4> &Visited,
+                                SmallPtrSetImpl<Instruction *> &DependingInsts,
+                                SmallPtrSetImpl<const BasicBlock *> &Visited,
                                 ProvenanceAnalysis &PA) {
   BasicBlock::iterator StartPos = StartInst;