More prompt-timing cleanups:  Make multi-line expressions
use the asynchronous stream mechanism rather than writing
directly to the Debugger's output & error streams.



git-svn-id: https://llvm.org/svn/llvm-project/llvdb/trunk@132930 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/source/Commands/CommandObjectExpression.h b/source/Commands/CommandObjectExpression.h
index 71eb9bf..d0feb6d 100644
--- a/source/Commands/CommandObjectExpression.h
+++ b/source/Commands/CommandObjectExpression.h
@@ -89,8 +89,8 @@
 
     bool
     EvaluateExpression (const char *expr,
-                        Stream &output_stream,
-                        Stream &error_stream,
+                        Stream *output_stream,
+                        Stream *error_stream,
                         CommandReturnObject *result = NULL);
 
     CommandOptions m_options;