[Syntax] Do not glue multiple empty PP expansions to a single mapping
Summary:
This change makes sure we have a single mapping for each macro expansion,
even if the result of expansion was empty.
To achieve that, we take information from PPCallbacks::MacroExpands into
account. Previously we relied only on source locations of expanded tokens.
Reviewers: sammccall
Reviewed By: sammccall
Subscribers: cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D62953
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@364236
91177308-0d34-0410-b5e6-
96231b3b80d8
projects / clang / commit