According to http://clang.llvm.org/docs/HowToSetupToolingForLLVM.html
it's suggested that compile_commands.json in the root of the LLVM source tree
should be a symlink to the json file produced by your build system of choice.

So here's a patch so it doesn't turn up in git status, etc.

llvm-svn: 162305

llvm-svn: 156021

 - Work in progress, this is just the basic structure.

llvm-svn: 155132

llvm-svn: 144328

llvm-svn: 142792

llvm-svn: 142791

llvm-svn: 140445

llvm-svn: 140443

.gitignore: Ignore /autom4te.cache. We can execute "PATH=/path/to/autotools/bin autoconf/AutoRegen.sh".

llvm-svn: 137441

llvm-svn: 132365

llvm-svn: 122066

llvm-svn: 121985

llvm-svn: 121968

of the entries there are useless for out of source builds.

llvm-svn: 121955