fix: Don't alter the AST node positions of original code.

[amishra-u]

fixes: #3799

Changes:

Deep Copy for Annotations:

1. Replaced the usage of the clone method (which performed a shallow copy) with TreeCopier. This ensures a deep copy of annotations, preventing updates to copied annotations from affecting the original ones.
2. Updated instances in the codebase (e.g., this location) where annotations were not being copied, ensuring the use of copyAnnotations.

Testing

Added a unit test using Delombok to verify that AST node positions remain unchanged before and after the Lombok annotation processor is applied, across all existing test files.

1. Introduced a preLombokProcessors (purely for testing purpose) field in Delombok to run processors before Lombok annotation processing. List is empty by default except for RunTestViaDelombok unit tests.
2. Created a NodePositionMapper processor within preLombokProcessors to capture the original AST node positions before Lombok processing.
3. Updated the existing ValidatePositionProcessor to validate node positions before and after Lombok processing.
4. Ignored validation for positions of nodes generated by Lombok, to handles cases like:

• @nonnull on record fields, where Lombok replaces GENERATEDCONSTR and modifies node positions. Also the GENERATEDCONSTR was never part of original code.

Note: Without this change, 43 tests under test/transform/resource/before failed for the above unit test.

[amishra-u]

@Rawi01 Can you please review it.

[amishra-u]

@Rawi01 In last run, the one check failed due to timeout. can you please rerun the check.

[amishra-u]

@Rawi01 can you please take a look.

[Rawi01]

Thanks for your contribution, great work!

• Please add yourself to the AUTHORS file
• visitAnnotation in ValidateNoDuplicateTreeNodeProcessor is no longer necessary and can be removed

[Rawi01]

Nit:

Suggested change

	List<JCAnnotation> annsOnMethod = copyAnnotations(onMethod, field.getTreeMaker()).appendList(copyableAnnotations);
	List<JCAnnotation> annsOnMethod = copyAnnotations(onMethod, treeMaker).appendList(copyableAnnotations);

[timtebeek]

hi @Rawi01 ; Thanks for the help getting this across the line! We're looking to leverage this downstream and I'm wondering what the release process looks like to get a local build. The instructions are 14 years old, so perhaps something has changed since?

I know it's always a pain when folks ask when the next release will be, but any indication would also be appreciated. 🙏🏻
Looking forward to the changes made since the last release v1.18.36...master