fix: wrap bool with function to pass tests

Author: byzyk

lib/Stats.js

@@ -106,6 +106,7 @@ class Stats {
 			if (item && typeof item === "object" && typeof item.test === "function")
 				return ident => item.test(ident);
 			if (typeof item === "function") return item;
+			if (typeof item === "boolean") return () => item;
 		};
 
 		const compilation = this.compilation;