NeXT: Emit symbols used to manage linking of Obj-C classes.
 - This ensures that references to undefined classes cause link
   errors.
 - NOTE: This relies on platform specific asm directives currently,
   this should be factored out.

Also, don't emit a SYMBOLS metadata entry if there are no symbols.

llvm-svn: 55302
1 file changed
tree: 9606a5cc879c31137201964f9903cba0c22c2ff9
  1. clang/
  2. llvm/