add CtTypeMember.getTopLevelType()

[pvojtechovsky]

I have added new method

interface CtTypeMember
	/**
	 * Returns top level declaring type of this. 
         * If this is already a TopLevelType, then it returns this
	 */
	<T> CtType<T> getTopLevelType();

I need it for next PR, which brings some new Refactoring methods for changing of the name of the CtVariable based elements.

Please give me feedback, if such method is acceptable. If yes, then I will add test case too.

Note: I also moved some getDeclaringType to more common place in the hierarchy of CtExecutableImpl, so I did not had to copy the implementation of getTopLevelType 3 times.

[monperrus]

not backward-compatible. do you really need to add generics?

[pvojtechovsky]

I needed that to solve another compilation problem in CtConstructorImpl ... but I will try different solution

[monperrus]

Returns the top level type declaring this type if an inner type. If this is already a top-level type, then returns itself.

[monperrus]

makes a lot of sense. it is OK to me.

[msteinbeck]

I'm looking for exactly the same feature.

[monperrus]

excellent. Could you add tests?

[msteinbeck]

Is it possible to add a similar method that returns the parent type instead of the top level type?

[pvojtechovsky]

Is it possible to add a similar method that returns the parent type instead of the top level type?

there is getDeclaringType() for that, is not?

[tdurieux]

or getParent(CtType.Class)

[pvojtechovsky]

Please merge it if it pass. I need this method in #1007