Undo commit 98146, which is incompatible with llvm-2.7:
Port commits 97948, 97962 and 97977 (dpatel) from llvm-gcc:
- Avoid DIDescriptor.isNull() checks.
- Revert r97948.
- Avoid using DIDescriptor.isNull(). 
  One character "!" makes all the difference!

llvm-svn: 101889
1 file changed
tree: 7e5f3196a5caa76023704388f6ee930be7862798
  1. dragonegg/
  2. llvm-gcc-4.2/