adding missing release for editor

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@60994 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/osx/cocoa/textctrl.mm

@@ -212,6 +212,12 @@ protected :
     return self;
 }
 
+- (void) dealloc
+{
+    [fieldEditor release];
+    [super dealloc];
+}
+
 - (void) setFieldEditor:(wxNSTextFieldEditor*) editor
 {
     fieldEditor = editor;