feat: set mutator

[oetr]

Adds a Set mutator to the mutation framework.

[Copilot]

Pull Request Overview

This PR adds support for Set mutation in the Jazzer mutation framework, mirroring the existing implementations for List and Map.

Key Changes

• Implemented SetMutatorFactory with mutation operations (delete, insert, mutate chunks) and crossover operations
• Extended ChunkMutations and ChunkCrossOvers utility classes to support Set operations
• Added comprehensive test coverage in SetMutatorTest with parameterized tests for all operations
• Updated @WithSize annotation to support Set types alongside List and Map

Reviewed Changes

Copilot reviewed 10 out of 10 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
SetMutatorFactory.java	New factory implementing Set mutation with chunk-based operations similar to List/Map mutators
CollectionMutators.java	Registered SetMutatorFactory in the list of available mutator factories
ChunkMutations.java	Added mutateRandomChunk method for Set with duplicate handling logic
ChunkCrossOvers.java	Added insertChunk, overwriteChunk, and crossOverChunk operations for Set
WithSize.java	Extended annotation to apply to Set types
TestSupport.java	Added utility methods: asSet, isEmpty, getCallerMethodName, and ParameterizedTestUtils.prependArgs
SetMutatorTest.java	Comprehensive parameterized tests covering all Set mutation and crossover operations
StressTest.java	Added stress test cases for Set types and setSizeInClosedRange helper
ArgumentsMutatorFuzzTest.java	Added fuzz tests for Set types and fixed typo in method name

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[simonresch]

Looks good! Very thorough test cases. 🚀