OTRE wrongly weaves private base method

[stephan]

ofrank reported a situation where the OTRE wrongly weaves into a private base method 'thinking' that the method overrides a bound method from the super class, while being private it does in fact not override.

I adopted the test case as X.1.1-otjld-binding-inheritance-14

Looking into the byte code, the weaving

• moves the original code to an orig-method
• replaces the original content with a super call, which causes an illegal access at runtime.

[stephan]

Fixed in r21676.