[lldb] - Fix crash when listing the history with the key up.

This is https://bugs.llvm.org/show_bug.cgi?id=40112,

Currently, lldb crashes after pressing the up arrow key when listing the history for expressions.

The patch fixes the mistype that was a reason.

Differential revision: https://reviews.llvm.org/D56014

llvm-svn: 351313

lldb/source/Host/common/Editline.cpp

@@ -443,7 +443,7 @@ unsigned char Editline::RecallHistory(bool earlier) {
     m_live_history_lines = m_input_lines;
     m_in_history = true;
   } else {
-    if (history_w(pHistory, &history_event, earlier ? H_NEXT : H_PREV) == -1) {
+    if (history_w(pHistory, &history_event, earlier ? H_PREV : H_NEXT) == -1) {
       // Can't move earlier than the earliest entry
       if (earlier)
         return CC_ERROR;