[SystemZ][z/OS] Set more text files as text

[abhina.sreeskantharajan]

Summary

This patch corrects more instances of text files being opened as text.

[Jonathan.Crowther]

LGTM

clang/tools/driver/cc1gen_reproducer_main.cpp

int cc1gen_reproducer_main(ArrayRef<const char *> Argv, const char *Argv0,
                            void *MainAddr) {
   if (Argv.size() < 1) {
     llvm::errs() << "error: missing invocation file\n";
     return 1;
   }
   // Parse the invocation descriptor.
   StringRef Input = Argv[0];
   llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer =
-      llvm::MemoryBuffer::getFile(Input);
+      llvm::MemoryBuffer::getFile(Input, /*IsText=*/true);
   if (!Buffer) {
     llvm::errs() << "error: failed to read " << Input << ": "
                  << Buffer.getError().message() << "\n";
     return 1;
   }
   llvm::yaml::Input YAML(Buffer.get()->getBuffer());
   ClangInvocationInfo InvocationInfo;
   YAML >> InvocationInfo;

clang/tools/libclang/CIndexer.cpp

LibclangInvocationReporter::LibclangInvocationReporter(
   if (Path.empty())
     return;
 
   // Create a temporary file for the invocation log.
   SmallString<256> TempPath;
   TempPath = Path;
   llvm::sys::path::append(TempPath, "libclang-%%%%%%%%%%%%");
   int FD;
-  if (llvm::sys::fs::createUniqueFile(TempPath, FD, TempPath))
+  if (llvm::sys::fs::createUniqueFile(TempPath, FD, TempPath,
+                                      llvm::sys::fs::OF_Text))
     return;
   File = std::string(TempPath.begin(), TempPath.end());
   llvm::raw_fd_ostream OS(FD, /*ShouldClose=*/true);
 
   // Write out the information about the invocation to it.
   auto WriteStringKey = [&OS](StringRef Key, StringRef Value) {
     OS << R"(")" << Key << R"(":")";
     OS << llvm::yaml::escape(Value) << '"';

llvm/include/llvm/Support/GraphWriter.h

 std::string WriteGraph(const GraphType &G, const Twine &Name,
                        bool ShortNames = false,
                        const Twine &Title = "",
                        std::string Filename = "") {
   int FD;
   if (Filename.empty()) {
     Filename = createGraphFilename(Name.str(), FD);
   } else {
-    std::error_code EC = sys::fs::openFileForWrite(Filename, FD);
+    std::error_code EC = sys::fs::openFileForWrite(
+        Filename, FD, sys::fs::CD_CreateAlways, sys::fs::OF_Text);
 
     // Writing over an existing file is not considered an error.
     if (EC == std::errc::file_exists) {
       errs() << "file exists, overwriting" << "\n";
     } else if (EC) {
       errs() << "error writing into file" << "\n";
       return "";
     } else {