Make helper functions static.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163505 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/StaticAnalyzer/Checkers/BasicObjCFoundationChecks.cpp b/lib/StaticAnalyzer/Checkers/BasicObjCFoundationChecks.cpp
index cddb5f0..1078cd3 100644
--- a/lib/StaticAnalyzer/Checkers/BasicObjCFoundationChecks.cpp
+++ b/lib/StaticAnalyzer/Checkers/BasicObjCFoundationChecks.cpp
@@ -732,9 +732,9 @@
 };
 }
 
-ProgramStateRef assumeExprIsNonNull(const Expr *NonNullExpr,
-                                    ProgramStateRef State,
-                                    CheckerContext &C) {
+static ProgramStateRef assumeExprIsNonNull(const Expr *NonNullExpr,
+                                           ProgramStateRef State,
+                                           CheckerContext &C) {
   SVal Val = State->getSVal(NonNullExpr, C.getLocationContext());
   if (DefinedOrUnknownSVal *DV = dyn_cast<DefinedOrUnknownSVal>(&Val))
     return State->assume(*DV, true);
diff --git a/lib/StaticAnalyzer/Checkers/CallAndMessageChecker.cpp b/lib/StaticAnalyzer/Checkers/CallAndMessageChecker.cpp
index eef29cb..39cfc8e 100644
--- a/lib/StaticAnalyzer/Checkers/CallAndMessageChecker.cpp
+++ b/lib/StaticAnalyzer/Checkers/CallAndMessageChecker.cpp
@@ -80,8 +80,8 @@
   C.EmitReport(R);
 }
 
-StringRef describeUninitializedArgumentInCall(const CallEvent &Call,
-                                              bool IsFirstArgument) {
+static StringRef describeUninitializedArgumentInCall(const CallEvent &Call,
+                                                     bool IsFirstArgument) {
   switch (Call.getKind()) {
   case CE_ObjCMessage: {
     const ObjCMethodCall &Msg = cast<ObjCMethodCall>(Call);