[PATCH] D123104: [Modules] Use looked-up filename when looking for module maps

[Duncan P. N. Exon Smith via Phabricator via cfe-commits]

dexonsmith added inline comments.


================
Comment at: clang/include/clang/Lex/HeaderSearch.h:758
+                                 bool IsSystemHeaderDir,
+                                 StringRef FileName = "");
 
----------------
benlangmuir wrote:
> This parameter could use a comment, even if it just points you to read the FIXME in the implementation.
Good point; maybe it could have a better name/type, too, something like:
```
lang=c++
Optional<StringRef> OverrideModuleMapFilename = None
```


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D123104/new/

https://reviews.llvm.org/D123104