Introduce New Method refactoring with yield statement leads to broken code

### Apache NetBeans version

Apache NetBeans 24

### What happened

Select piece of code with `yield` statement


and choose "Introduce Method" refactoring.

The generated code is broken. The new method
- has `void` return type
- continues to use `yield` instead of `return`

Looks like special treatment of `yield` is needed when introducing methods. CCing @jlahoda, @lahodaj

### Language / Project Type / NetBeans Component

_No response_

### How to reproduce

Select piece of code with `yield` statement


and choose "Introduce Method" refactoring.

### Did this work correctly in an earlier version?

No / Don't know

### Operating System

Any

### JDK

JDK21

### Apache NetBeans packaging

Own source build

### Anything else

_No response_

### Are you willing to submit a pull request?

No

Reproduce this in Apache NetBeans 24 on JDK 21 by selecting code containing a yield statement and choosing Introduce Method. Inspect the generated method and its return behavior; done means the refactoring no longer produces a void method that still uses yield, and the resulting code is valid.

Written by the indexing model from the issue text.