Part 2 of SBUnitSignals check-in.

I missed adding a few new files to the change list.
The build is broken from r211526 without this fix.
(And Ed Maste caught it before I did, so this is
the remainder - the test methods).


git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@211535 91177308-0d34-0410-b5e6-96231b3b80d8
Don't set the ABI to apcs-gnu for non-ARM iOS targets (i.e., the
simulator).
    
<rdar://problem/17399406>


git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@211536 91177308-0d34-0410-b5e6-96231b3b80d8
Temporarily roll back the parts of r211241 where I fixed a
mistake in the lock acquistion in HistoryUnwind and HistoryThread.
We've got a deadlock with one use case of HistoryUnwind; I
need to figure out what lock ordering is causing this and fix
it for real.  
<rdar://problem/17411904> 


git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@211541 91177308-0d34-0410-b5e6-96231b3b80d8