Summary

This PR addresses multiple compatibility issues discovered while running the Clojure test suite against Glojure, improving conformance with Clojure JVM behavior.

Major Changes

Core Language Features

• case special form*: Complete refactor to properly handle hash collisions, particularly for false vs nil cases
• Delay/Force: Added delay implementation with proper forcing semantics
• Iterate: Implemented lazy iterate function for sequence generation
• Exception handling: Added ExceptionInfo type and improved catch clause matching
• Watches: Implemented watch functionality for both atoms and vars

Collections & Hashing

• Hash consistency: Fixed hash computation for maps, sets, vectors, and lists to match Clojure
  • Vectors and lists now hash to the same value when containing equal elements
  • Maps compute hash as sum of (key XOR value) for each entry
  • Sets compute hash as sum of element hashes
• Equality fixes: Improved lazy sequence equality checking
• Interface corrections: Distinguished between Counted (constant-time) and Counter interfaces

Numeric Operations

• Bit operations: Added missing bit-and-not, bit-set, bit-flip, bit-clear, and bit-test
• Type casting: Fixed int and byte casting behavior to match JVM semantics
• Number comparisons: Fixed edge cases in numeric operations

Function & Type Predicates

• fn? predicate: Fixed to properly identify functions vs general IFn implementations
• ifn? predicate: Corrected to match Clojure's behavior
• contains?: Fixed for string type checking
• Keyword comparison: Implemented proper Comparable interface for keywords

Runtime & Interop

• Dynamic bindings: Fixed cloning of thread-local bindings for bound-fn
• Namespace iteration: Use AllNamespaces() instead of direct access
• Exception data: Added GetExData for exception info extraction
• Next operation: Fixed next behavior for nil/empty sequences

Standard Library Updates

• Updated core.glj transformations to handle new types and functions
• Fixed hash-set implementation to use proper interop
• Various stdlib fixes for test suite compatibility

Testing

• Added comprehensive unit tests for case* analyzer
• Added extensive tests for catch clause matching
• Added hash consistency tests for collections
• Successfully runs more of the Clojure test suite

Files Changed

• Core language: 30+ files
• Standard library: Multiple .glj files and loaders
• Platform-specific imports: All architectures updated
• Test files: New test coverage for critical paths

Breaking Changes

None expected - all changes improve compatibility with existing Clojure code.

Next Steps

• Continue running Clojure test suite to identify remaining issues
• Performance benchmarking of hash-based dispatch
• Documentation updates for new features