Move the sorting of code-completion results out of the main path and

into the clients, e.g., the printing code-completion consumer and
c-index-test. Clients may want to re-sort the results anyway.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112095 91177308-0d34-0410-b5e6-96231b3b80d8