[clangd] Use pre-populated mappings for standard symbols
Summary:
This takes ~5% of time when running clangd unit tests.
To achieve this, move mapping of system includes out of CanonicalIncludes
and into a separate class
Reviewers: sammccall, hokein
Reviewed By: sammccall
Subscribers: MaskRay, jkorous, arphaman, kadircet, jfb, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D67172
git-svn-id: https://llvm.org/svn/llvm-project/clang-tools-extra/trunk@371408 91177308-0d34-0410-b5e6-96231b3b80d8
7 files changed