Use SmallVectorImpl instead of SmallVector for iterators and references to avoid specifying the vector size unnecessarily.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@185610 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/StaticAnalyzer/Checkers/MallocChecker.cpp b/lib/StaticAnalyzer/Checkers/MallocChecker.cpp
index c5286d1..1229a32 100644
--- a/lib/StaticAnalyzer/Checkers/MallocChecker.cpp
+++ b/lib/StaticAnalyzer/Checkers/MallocChecker.cpp
@@ -1670,8 +1670,8 @@
   if (!Errors.empty()) {
     static SimpleProgramPointTag Tag("MallocChecker : DeadSymbolsLeak");
     N = C.addTransition(C.getState(), C.getPredecessor(), &Tag);
-    for (SmallVector<SymbolRef, 2>::iterator
-        I = Errors.begin(), E = Errors.end(); I != E; ++I) {
+    for (SmallVectorImpl<SymbolRef>::iterator
+           I = Errors.begin(), E = Errors.end(); I != E; ++I) {
       reportLeak(*I, N, C);
     }
   }
diff --git a/lib/StaticAnalyzer/Checkers/SimpleStreamChecker.cpp b/lib/StaticAnalyzer/Checkers/SimpleStreamChecker.cpp
index c2786e1..9ca0ab5 100644
--- a/lib/StaticAnalyzer/Checkers/SimpleStreamChecker.cpp
+++ b/lib/StaticAnalyzer/Checkers/SimpleStreamChecker.cpp
@@ -227,8 +227,8 @@
                                                ExplodedNode *ErrNode) const {
   // Attach bug reports to the leak node.
   // TODO: Identify the leaked file descriptor.
-  for (SmallVector<SymbolRef, 2>::iterator
-      I = LeakedStreams.begin(), E = LeakedStreams.end(); I != E; ++I) {
+  for (SmallVectorImpl<SymbolRef>::iterator
+         I = LeakedStreams.begin(), E = LeakedStreams.end(); I != E; ++I) {
     BugReport *R = new BugReport(*LeakBugType,
         "Opened file is never closed; potential resource leak", ErrNode);
     R->markInteresting(*I);
diff --git a/lib/StaticAnalyzer/Core/BugReporter.cpp b/lib/StaticAnalyzer/Core/BugReporter.cpp
index 6b110ad..912d5c5 100644
--- a/lib/StaticAnalyzer/Core/BugReporter.cpp
+++ b/lib/StaticAnalyzer/Core/BugReporter.cpp
@@ -2743,7 +2743,7 @@
   SmallVector<const BugType*, 16> bugTypes;
   for (BugTypesTy::iterator I=BugTypes.begin(), E=BugTypes.end(); I!=E; ++I)
     bugTypes.push_back(*I);
-  for (SmallVector<const BugType*, 16>::iterator
+  for (SmallVectorImpl<const BugType *>::iterator
          I = bugTypes.begin(), E = bugTypes.end(); I != E; ++I)
     const_cast<BugType*>(*I)->FlushReports(*this);