[PATCH] D70863: [clangd] Try harder to find a plausible `clang` as argv0, particularly on Mac.

[Sam McCall via Phabricator via cfe-commits]

sammccall created this revision.
sammccall added reviewers: kbobyrev, ilya-biryukov.
Herald added subscribers: cfe-commits, usaxena95, kadircet, arphaman, jkorous, MaskRay.
Herald added a project: clang.

Fixes https://github.com/clangd/clangd/issues/211
Fixes https://github.com/clangd/clangd/issues/178

No tests - this is hard to test, and basically impossible to verify what we want
(this produces compile commands that work on a real mac with recent toolchain)

(Need someone on mac to verify it actually fixes these!)


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D70863

Files:
  clang-tools-extra/clangd/GlobalCompilationDatabase.cpp

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