isFunctionLike(obj)

Return true if func is a function, or implements @@can.new or @@can.apply; false otherwise.

canReflect.isFunctionLike(function() {}); // -> true
canReflect.isFunctionLike({}); // -> false
canReflect.isFunctionLike({ [canSymbol.for("can.apply")]: function() {} }); // -> true