Switch clang-query to use the lineeditor library.

Differential Revision: http://llvm-reviews.chandlerc.com/D2262

git-svn-id: http://llvm.org/svn/llvm-project/clang-tools-extra/trunk@200603 91177308-0d34-0410-b5e6-96231b3b80d8
Add completion to the query parser, and hook it up to clang-query.

Differential Revision: http://llvm-reviews.chandlerc.com/D2263

git-svn-id: http://llvm.org/svn/llvm-project/clang-tools-extra/trunk@200604 91177308-0d34-0410-b5e6-96231b3b80d8
Fix crash when handling an argument parsing-related warning.

Summary: Don't crash on warnings coming before the translation unit starts.

Reviewers: klimek, djasper

Reviewed By: djasper

CC: cfe-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D2676

git-svn-id: http://llvm.org/svn/llvm-project/clang-tools-extra/trunk@200702 91177308-0d34-0410-b5e6-96231b3b80d8
Make the OptionCategory variable static.


git-svn-id: http://llvm.org/svn/llvm-project/clang-tools-extra/trunk@200841 91177308-0d34-0410-b5e6-96231b3b80d8