drop more llvm:: prefixes on OwningPtr<>

More cleanup after r149798.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150379 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/libclang/CIndex.cpp b/tools/libclang/CIndex.cpp
index f6e4d99..8071378 100644
--- a/tools/libclang/CIndex.cpp
+++ b/tools/libclang/CIndex.cpp
@@ -2457,7 +2457,7 @@
     llvm::CrashRecoveryContextReleaseRefCleanup<DiagnosticsEngine> >
     DiagCleanup(Diags.getPtr());
 
-  llvm::OwningPtr<std::vector<ASTUnit::RemappedFile> >
+  OwningPtr<std::vector<ASTUnit::RemappedFile> >
     RemappedFiles(new std::vector<ASTUnit::RemappedFile>());
 
   // Recover resources if we crash before exiting this function.
@@ -2472,7 +2472,7 @@
                                             Buffer));
   }
 
-  llvm::OwningPtr<std::vector<const char *> > 
+  OwningPtr<std::vector<const char *> >
     Args(new std::vector<const char*>());
 
   // Recover resources if we crash before exiting this method.
@@ -2516,7 +2516,7 @@
   }
   
   unsigned NumErrors = Diags->getClient()->getNumErrors();
-  llvm::OwningPtr<ASTUnit> Unit(
+  OwningPtr<ASTUnit> Unit(
     ASTUnit::LoadFromCommandLine(Args->size() ? &(*Args)[0] : 0 
                                  /* vector::data() not portable */,
                                  Args->size() ? (&(*Args)[0] + Args->size()) :0,
@@ -2658,7 +2658,7 @@
   ASTUnit *CXXUnit = static_cast<ASTUnit *>(TU->TUData);
   ASTUnit::ConcurrencyCheck Check(*CXXUnit);
   
-  llvm::OwningPtr<std::vector<ASTUnit::RemappedFile> >
+  OwningPtr<std::vector<ASTUnit::RemappedFile> >
     RemappedFiles(new std::vector<ASTUnit::RemappedFile>());
   
   // Recover resources if we crash before exiting this function.
@@ -5448,7 +5448,7 @@
   }
   
   ASTUnit *astUnit = static_cast<ASTUnit*>(TU->TUData);
-  llvm::OwningPtr<MemUsageEntries> entries(new MemUsageEntries());
+  OwningPtr<MemUsageEntries> entries(new MemUsageEntries());
   ASTContext &astContext = astUnit->getASTContext();
   
   // How much memory is used by AST nodes and types?