sys/windows: fix build

core/sys/windows/types.odin

@@ -418,10 +418,10 @@ SWP_NOREPOSITION :: SWP_NOOWNERZORDER
 SWP_DEFERERASE     :: 0x2000 // same as SWP_DEFERDRAWING
 SWP_ASYNCWINDOWPOS :: 0x4000 // same as SWP_CREATESPB
 
-HWND_TOP       : HWND : 0
-HWND_BOTTOM    : HWND : 1
-HWND_TOPMOST   : HWND : -1
-HWND_NOTOPMOST : HWND : -2
+HWND_TOP       :: 0
+HWND_BOTTOM    :: 1
+HWND_TOPMOST   :: -1
+HWND_NOTOPMOST :: -2
 
 CW_USEDEFAULT      : c_int : -2147483648