Need a method shutter mechanism, similar to class shutter mechanism

[hrj]

When scanning methods as part of wrapping a java object, we have a way to annotate methods with HideFromJS.

But such an annotation can't be used on library classes. The most basic example is java.lang.Object from which all java objects derive.

A primitive plug in place today is to shutter all methods from classes with names prefixed with java. However, we need a more robust scheme. We need a white list rather than a black list.

[hrj]

Loosely related to #136