user32: Add SysLink to known classes list.

dlls/user32/class.c

@@ -139,6 +139,7 @@ static BOOL is_comctl32_class( const WCHAR *name )
         {'S','y','s','D','a','t','e','T','i','m','e','P','i','c','k','3','2',0},
         {'S','y','s','H','e','a','d','e','r','3','2',0},
         {'S','y','s','I','P','A','d','d','r','e','s','s','3','2',0},
+        {'S','y','s','L','i','n','k',0},
         {'S','y','s','L','i','s','t','V','i','e','w','3','2',0},
         {'S','y','s','M','o','n','t','h','C','a','l','3','2',0},
         {'S','y','s','P','a','g','e','r',0},

dlls/user32/tests/class.c

@@ -1093,6 +1093,7 @@ static void test_comctl32_classes(void)
         PROGRESS_CLASSA,
         REBARCLASSNAMEA,
         STATUSCLASSNAMEA,
+        "SysLink",
         WC_TABCONTROLA,
         TOOLBARCLASSNAMEA,
         TOOLTIPS_CLASSA,