[SystemZ][z/OS] Add OpenFlags to CreateMissingDirectories path when creating temp files

[tltao]

Summary

Additional patch to https://reviews.llvm.org/D103806 to add the same flags in the path where the CreateMissingDirectories booleans is set to true.

[abhina.sreeskantharajan]

LGTM

clang/lib/Frontend/CompilerInstance.cpp

if (UseTemporary) {
     // (noticeable, clang's own GlobalModuleIndex.cpp) glob for build
     // artifacts, also append .tmp.
     StringRef OutputExtension = llvm::sys::path::extension(OutputPath);
     SmallString<128> TempPath =
         StringRef(OutputPath).drop_back(OutputExtension.size());
     TempPath += "-%%%%%%%%";
     TempPath += OutputExtension;
     TempPath += ".tmp";
+    llvm::sys::fs::OpenFlags BinaryFlags =
+        Binary ? llvm::sys::fs::OF_None : llvm::sys::fs::OF_Text;
     Expected<llvm::sys::fs::TempFile> ExpectedFile =
         llvm::sys::fs::TempFile::create(
             TempPath, llvm::sys::fs::all_read | llvm::sys::fs::all_write,
-            Binary ? llvm::sys::fs::OF_None : llvm::sys::fs::OF_Text);
+            BinaryFlags);
 
     llvm::Error E = handleErrors(
         ExpectedFile.takeError(), [&](const llvm::ECError &E) -> llvm::Error {
           std::error_code EC = E.convertToErrorCode();
           if (CreateMissingDirectories &&
               EC == llvm::errc::no_such_file_or_directory) {
             StringRef Parent = llvm::sys::path::parent_path(OutputPath);
             EC = llvm::sys::fs::create_directories(Parent);
             if (!EC) {
-              ExpectedFile = llvm::sys::fs::TempFile::create(TempPath);
+              ExpectedFile = llvm::sys::fs::TempFile::create(
+                  TempPath, llvm::sys::fs::all_read | llvm::sys::fs::all_write,
+                  BinaryFlags);
               if (!ExpectedFile)
                 return llvm::errorCodeToError(
                     llvm::errc::no_such_file_or_directory);
             }
           }
           return llvm::errorCodeToError(EC);
         });