Method isVolatile

src/jvm/clojure/lang/Compiler.java:5526–5529

(LocalBinding lb)

	}

	boolean isVolatile(LocalBinding lb){
		return RT.booleanCast(RT.contains(fields, lb.sym)) &&
		       RT.booleanCast(RT.get(lb.sym.meta(), Keyword.intern("volatile-mutable")));
	}

	boolean isDeftype(){
		return fields != null;