Free the strong reference to a lldb::SBDebugger that the script interpreter was holding onto in the "lldb.debugger" global variable.



git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@207292 91177308-0d34-0410-b5e6-96231b3b80d8
Since one or more Editline instances of the same kind (lldb commands, expressions, etc) can exist at once, they should all shared a ref counted history object.

Now they do.



git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@207293 91177308-0d34-0410-b5e6-96231b3b80d8