Make the Expression Execution result enum available to the SB API layer.
Add a callback that will allow an expression to be cancelled between the
expression evaluation stages (for the ClangUserExpressions.)

<rdar://problem/16790467>, <rdar://problem/16573440>

llvm-svn: 207944
diff --git a/lldb/source/Plugins/SystemRuntime/MacOSX/AppleGetPendingItemsHandler.cpp b/lldb/source/Plugins/SystemRuntime/MacOSX/AppleGetPendingItemsHandler.cpp
index 444de2d..214d0f2 100644
--- a/lldb/source/Plugins/SystemRuntime/MacOSX/AppleGetPendingItemsHandler.cpp
+++ b/lldb/source/Plugins/SystemRuntime/MacOSX/AppleGetPendingItemsHandler.cpp
@@ -368,13 +368,13 @@
     }
 
 
-    ExecutionResults func_call_ret;
+    ExpressionResults func_call_ret;
     Value results;
     func_call_ret =  m_get_pending_items_function->ExecuteFunction (exe_ctx, &args_addr, options, errors, results);
     if (func_call_ret != eExecutionCompleted || !error.Success())
     {
         if (log)
-            log->Printf ("Unable to call __introspection_dispatch_queue_get_pending_items(), got ExecutionResults %d, error contains %s", func_call_ret, error.AsCString(""));
+            log->Printf ("Unable to call __introspection_dispatch_queue_get_pending_items(), got ExpressionResults %d, error contains %s", func_call_ret, error.AsCString(""));
         error.SetErrorString ("Unable to call __introspection_dispatch_queue_get_pending_items() for list of queues");
         return return_value;
     }