sammccall added a comment.

Bad news: this isn't ready, there are places where ASTWriter calls 
AddSourceLocation() twice and ASTReader calls ReadSourceRange().
After this change, those are no longer compatible so we have to make them 
match, and have to audit them all.

Good news, there's a bunch of potential places where we can replace 
AddSourceLocation() pairs with AddSourceRange for further savings.
Maybe even replacing other "chains" of source locations with delta-encoding, 
though I might be getting carried away...


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D124422/new/

https://reviews.llvm.org/D124422

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