Don't use the fact that we stopped with a "Breakpoint" stop reason to decide to step over the breakpoint.  It's 
better to check directly whether there is a breakpoint site at the PC.


git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@176919 91177308-0d34-0410-b5e6-96231b3b80d8