patch 8.0.1312: balloon_show() only works in terminal when compiled with GUI
Problem: balloon_show() only works in terminal when compiled with the GUI.
Solution: Add FEAT_BEVAL_GUI and refactor to move common code out of the GUI
specific file.
diff --git a/src/gui.c b/src/gui.c
index 926750c..8118ca1 100644
--- a/src/gui.c
+++ b/src/gui.c
@@ -738,7 +738,7 @@
* resized. */
win_new_shellsize();
-#ifdef FEAT_BEVAL
+#ifdef FEAT_BEVAL_GUI
/* Always create the Balloon Evaluation area, but disable it when
* 'ballooneval' is off. */
if (balloonEval != NULL)