now that we have a centralized place to do so, add some using declarations for

some common llvm types: stringref and smallvector.  This cleans up the codebase
quite a bit.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135576 91177308-0d34-0410-b5e6-96231b3b80d8

120 files changed, 687 insertions, 663 deletions

diff --git a/include/clang/ARCMigrate/ARCMT.h b/include/clang/ARCMigrate/ARCMT.h
index 147ac2fd85..9b4f595d2f 100644
--- a/include/clang/ARCMigrate/ARCMT.h
+++ b/include/clang/ARCMigrate/ARCMT.h
@@ -37,17 +37,17 @@ namespace arcmt {
 ///
 /// \returns false if no error is produced, true otherwise.
 bool checkForManualIssues(CompilerInvocation &CI,
-                          llvm::StringRef Filename, InputKind Kind,
+                          StringRef Filename, InputKind Kind,
                           DiagnosticClient *DiagClient,
                           bool emitPremigrationARCErrors = false,
-                          llvm::StringRef plistOut = llvm::StringRef());
+                          StringRef plistOut = StringRef());
 
 /// \brief Works similar to checkForManualIssues but instead of checking, it
 /// applies automatic modifications to source files to conform to ARC.
 ///
 /// \returns false if no error is produced, true otherwise.
 bool applyTransformations(CompilerInvocation &origCI,
-                          llvm::StringRef Filename, InputKind Kind,
+                          StringRef Filename, InputKind Kind,
                           DiagnosticClient *DiagClient);
 
 /// \brief Applies automatic modifications and produces temporary files
@@ -62,18 +62,18 @@ bool applyTransformations(CompilerInvocation &origCI,
 ///
 /// \returns false if no error is produced, true otherwise.
 bool migrateWithTemporaryFiles(CompilerInvocation &origCI,
-                               llvm::StringRef Filename, InputKind Kind,
+                               StringRef Filename, InputKind Kind,
                                DiagnosticClient *DiagClient,
-                               llvm::StringRef outputDir,
+                               StringRef outputDir,
                                bool emitPremigrationARCErrors,
-                               llvm::StringRef plistOut);
+                               StringRef plistOut);
 
 /// \brief Get the set of file remappings from the \arg outputDir path that
 /// migrateWithTemporaryFiles produced.
 ///
 /// \returns false if no error is produced, true otherwise.
 bool getFileRemappings(std::vector<std::pair<std::string,std::string> > &remap,
-                       llvm::StringRef outputDir,
+                       StringRef outputDir,
                        DiagnosticClient *DiagClient);
 
 typedef void (*TransformFn)(MigrationPass &pass);
@@ -87,7 +87,7 @@ class MigrationProcess {
 
 public:
   MigrationProcess(const CompilerInvocation &CI, DiagnosticClient *diagClient,
-                   llvm::StringRef outputDir = llvm::StringRef());
+                   StringRef outputDir = StringRef());
 
   class RewriteListener {
   public:
@@ -96,7 +96,7 @@ public:
     virtual void start(ASTContext &Ctx) { }
     virtual void finish() { }
 
-    virtual void insert(SourceLocation loc, llvm::StringRef text) { }
+    virtu