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The source object bound can be a ScriptObject or a ScriptOjectMirror.
null or undefined source object results in TypeError being thrown.

Limitations of property binding:

* Only enumerable, immediate (not proto inherited) properties of the source object are bound.
* If the target object already contains a property called "foo", the source's "foo" is skipped (not bound).
* Properties added to the source object after binding to the target are not bound.
* Property configuration changes on the source object (or on the target) is not propagated.
* Delete of property on the target (or the source) is not propagated -
* only the property value is set to 'undefined' if the property happens to be a data property.

It is recommended that the bound properties be treated as non-configurable
properties to avoid surprises.

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