patch 8.0.1135: W_WINCOL() is always the same

Problem:    W_WINCOL() is always the same.
Solution:   Expand the macro.
diff --git a/src/netbeans.c b/src/netbeans.c
index 3685e15..1a86727 100644
--- a/src/netbeans.c
+++ b/src/netbeans.c
@@ -2872,7 +2872,7 @@
 
     if (bufno >= 0 && curwin != NULL && curwin->w_buffer == curbuf)
     {
-	int col = mouse_col - W_WINCOL(curwin)
+	int col = mouse_col - curwin->w_wincol
 			      - ((curwin->w_p_nu || curwin->w_p_rnu) ? 9 : 1);
 	long off = pos2off(curbuf, &curwin->w_cursor);