Merging r351788: --------------------------------------------------------------…

Authored by hansw on Jan 22 2019, 11:07 AM.


Merging r351788: ------------------------------------------------------------------------ r351788 | kadircet | 2019-01-22 10:10:20 +0100 (Tue, 22 Jan 2019) | 15 lines

[clangd] Filter out plugin related flags and move all commandline manipulations into OverlayCDB.

Some projects make use of clang plugins when building, but clangd is
not aware of those plugins therefore can't work with the same compile command

There were multiple places clangd performed commandline manipulations,
this one also moves them all into OverlayCDB.

Reviewers: ilya-biryukov

Subscribers: klimek, sammccall, ioeric, MaskRay, jkorous, arphaman, cfe-commits

Differential Revision: https://reviews.llvm.org/D56841

llvm-svn: 351860