Add the ability to set python breakpoint commands from the SBBreakpoint & SBBreakpointLocation API's.  
You can either provide the function name, or function body text.
Also propagate the compilation error up from where it is checked so we can report compilation errors.

<rdar://problem/9898371>


git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@205380 91177308-0d34-0410-b5e6-96231b3b80d8
Test case for the previous commit.


git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@205381 91177308-0d34-0410-b5e6-96231b3b80d8