swift234

Change how the DebugClient supplies names to the Name lookup (for lldb REPL and expression parser.)  We used to be
only a fallback if no names are found.  But that meant the repl couldn't add overloaded versions of functions that
have any versions not provided by the debugger.  Now we augment the result of lookupInModule, and the rest of the
resolution mechanism can pick the right variant.

<rdar://problem/17025292>


Swift SVN r19301