Fix problem when compiling without Core Text

src/MacVim/MMCoreTextView+ToolTip.m

@@ -19,6 +19,10 @@
  * changes were made to adapt the code to MacVim.
  */
 
+#import "Miscellaneous.h" // Defines MM_ENABLE_ATSUI
+
+#if !MM_ENABLE_ATSUI
+
 #import "MMCoreTextView.h"
 
 
@@ -228,3 +232,5 @@ static const NSTrackingRectTag kTrackingRectTag = 0xBADFACE;
 }
 
 @end
+
+#endif // !MM_ENABLE_ATSUI