Fixed an issue where if you called:

SBTarget::AddModule(const char *path,
                    const char *triple,
                    const char *uuid_cstr,
                    const char *symfile);

If "symfile" was filled in, it would cause us to not correctly add the module. Same goes for:

SBTarget::AddModule(SBModuleSpec ...)

Where you filled in the symfile.

<rdar://problem/16529799>