[PATCH] D52268: [AST] Squeeze some bits in LinkageComputer

[John McCall via Phabricator via cfe-commits]

rjmccall added a comment.

`LinkageComputer` isn't actually persisted anywhere, right?  And there's maybe one computer active at once?  So this compression is theoretically saving one pointer of stack space but forcing a bunch of bit-manipulation every time these fields are accessed.


Repository:
  rC Clang

https://reviews.llvm.org/D52268