Fixed a typo (compilation_commands.json --> compile_commands.json).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@279240 91177308-0d34-0410-b5e6-96231b3b80d8

Author: andreybokhanko

docs/HowToSetupToolingForLLVM.rst

@@ -13,7 +13,7 @@ Introduction
 
 Clang Tooling needs a compilation database to figure out specific build
 options for each file. Currently it can create a compilation database
-from the ``compilation_commands.json`` file, generated by CMake. When
+from the ``compile_commands.json`` file, generated by CMake. When
 invoking clang tools, you can either specify a path to a build directory
 using a command line parameter ``-p`` or let Clang Tooling find this
 file in your source tree. In either case you need to configure your