Keep -vet happy

vendor/darwin/Foundation/NSNumber.odin

@@ -1,8 +1,9 @@
 package objc_Foundation
 
-import "core:c"
-
 when ODIN_OS == .Darwin {
+	import "core:c"
+	_ :: c
+
 	#assert(size_of(c.long)  == size_of(int))
 	#assert(size_of(c.ulong) == size_of(uint))
 }