Add llvm:: qualifer to make_unique, NFC

To avoid potential "make_unique is ambiguous" compiler errors.

llvm-svn: 356878

Author: hokein

clang-tools-extra/pp-trace/PPTrace.cpp

@@ -85,8 +85,8 @@ class PPTraceAction : public ASTFrontendAction {
                                                  StringRef InFile) override {
     Preprocessor &PP = CI.getPreprocessor();
     PP.addPPCallbacks(
-        make_unique<PPCallbacksTracker>(Filters, CallbackCalls, PP));
-    return make_unique<ASTConsumer>();
+        llvm::make_unique<PPCallbacksTracker>(Filters, CallbackCalls, PP));
+    return llvm::make_unique<ASTConsumer>();
   }
 
   void EndSourceFileAction() override {
@@ -151,7 +151,7 @@ int main(int argc, const char **argv) {
     error(EC.message());
 
   if (Error Err = Exec->get()->execute(
-      make_unique<PPTraceFrontendActionFactory>(Filters, Out.os())))
+      llvm::make_unique<PPTraceFrontendActionFactory>(Filters, Out.os())))
     error(toString(std::move(Err)));
   Out.keep();
   return 0;