[LLD][ELF] - Add one more test case for CallGraphSort.
[LLD][ELF] - Add one more test case for CallGraphSort.

This adds a coverage for the following early continue:
https://github.com/llvm-mirror/lld/blob/master/ELF/CallGraphSort.cpp#L200

git-svn-id: f6089bf0e6284f307027cef4f64114ee9ebb0424@339514 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/lld,llvm-mirror/lld