Fixed a problem where -gmodules debug info would be loaded by the DWO file...

Fixed a problem where -gmodules debug info would be loaded by the DWO file support accidentally and cause 1000s of files to be mapped into LLDB's address space for each .o file that reference a module.

<rdar://problem/26580266> -gmodules causes LLDB.framework to map hundreds of copies of the same .pcm file

llvm-svn: 271543