Make "disassemble -a" work when the target is not running yet.  It will dump all the functions matching that address, just like "disassemble -n" does before running.

<rdar://problem/16406570>


git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@204689 91177308-0d34-0410-b5e6-96231b3b80d8