[clang] [llvm] [SystemZ][z/OS] Add new openFileForReadBinary function, and pass IsText parameter to getBufferForFile (PR #111723)

[kadir çetinkaya via cfe-commits]

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@@ -292,21 +292,21 @@ class FileManager : public RefCountedBase<FileManager> {
   /// MemoryBuffer if successful, otherwise returning null.
   llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>>
   getBufferForFile(FileEntryRef Entry, bool isVolatile = false,
-                   bool RequiresNullTerminator = true,
+                   bool RequiresNullTerminator = true, bool IsText = true,
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kadircet wrote:

can you add some comments explaining what `IsText` is about and when it should be set to `false`?

also can you make it the last parameter ?

https://github.com/llvm/llvm-project/pull/111723