Fix namespace polution.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109440 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/AnalysisBasedWarnings.cpp b/lib/Sema/AnalysisBasedWarnings.cpp
index 3c09122..3d2c45f 100644
--- a/lib/Sema/AnalysisBasedWarnings.cpp
+++ b/lib/Sema/AnalysisBasedWarnings.cpp
@@ -197,6 +197,8 @@
   return AlwaysFallThrough;
 }
 
+namespace {
+
 struct CheckFallThroughDiagnostics {
   unsigned diag_MaybeFallThrough_HasNoReturn;
   unsigned diag_MaybeFallThrough_ReturnsNonVoid;
@@ -266,6 +268,8 @@
   }
 };
 
+}
+
 /// CheckFallThroughForFunctionDef - Check that we don't fall off the end of a
 /// function that should return a value.  Check that we don't fall off the end
 /// of a noreturn function.  We assume that functions and blocks not marked
diff --git a/lib/Sema/SemaCXXCast.cpp b/lib/Sema/SemaCXXCast.cpp
index 787bd00..29e9051 100644
--- a/lib/Sema/SemaCXXCast.cpp
+++ b/lib/Sema/SemaCXXCast.cpp
@@ -197,7 +197,7 @@
 /// the same kind of pointer (plain or to-member). Unlike the Sema function,
 /// this one doesn't care if the two pointers-to-member don't point into the
 /// same class. This is because CastsAwayConstness doesn't care.
-bool UnwrapDissimilarPointerTypes(QualType& T1, QualType& T2) {
+static bool UnwrapDissimilarPointerTypes(QualType& T1, QualType& T2) {
   const PointerType *T1PtrType = T1->getAs<PointerType>(),
                     *T2PtrType = T2->getAs<PointerType>();
   if (T1PtrType && T2PtrType) {
diff --git a/lib/Sema/SemaDecl.cpp b/lib/Sema/SemaDecl.cpp
index 11e1ffe..1788eb7 100644
--- a/lib/Sema/SemaDecl.cpp
+++ b/lib/Sema/SemaDecl.cpp
@@ -929,6 +929,8 @@
   }
 }
 
+namespace {
+
 /// Used in MergeFunctionDecl to keep track of function parameters in
 /// C.
 struct GNUCompatibleParamWarning {
@@ -937,6 +939,7 @@
   QualType PromotedType;
 };
 
+}
 
 /// getSpecialMember - get the special member enum for a method.
 Sema::CXXSpecialMember Sema::getSpecialMember(const CXXMethodDecl *MD) {
diff --git a/lib/Sema/SemaStmt.cpp b/lib/Sema/SemaStmt.cpp
index 58131da..b4d207e 100644
--- a/lib/Sema/SemaStmt.cpp
+++ b/lib/Sema/SemaStmt.cpp
@@ -1577,6 +1577,8 @@
                                           HandlerBlock.takeAs<Stmt>()));
 }
 
+namespace {
+
 class TypeWithHandler {
   QualType t;
   CXXCatchStmt *stmt;
@@ -1606,6 +1608,8 @@
   }
 };
 
+}
+
 /// ActOnCXXTryBlock - Takes a try compound-statement and a number of
 /// handlers and creates a try statement from them.
 Action::OwningStmtResult