build: Add ModuleName per-subdir variable as a way to organize the different
sets of functions/objects into high level groups. Currently we have "builtins"
(the main compiler-rt code), "profile", and "asan".
 - Use this to define CommonFunctions and ArchFunctions to only reference the
   builtins functions.

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@145674 91177308-0d34-0410-b5e6-96231b3b80d8
11 files changed