Use the new method for specifying garbage collection metadata in the module.

The garbage collection metadata needs to be merged "intelligently", when two or
more modules are linked together, and not merely appended. (Appending creates a
section which is too large.) The module flags metadata method is the way to do
this.
<rdar://problem/8198537>


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150648 91177308-0d34-0410-b5e6-96231b3b80d8
4 files changed