What's New
- Word Shadowing: Implement backward search for Forth word definitions
vm_find_word()searches from newest to oldest definitions- Newer definitions shadow older ones with the same name
- Fundamental Forth feature for interactive development
- Comprehensive Tests: Added 12 unit tests for word shadowing semantics
- RAII Test Fixture: Prevent memory leaks in tests with automatic cleanup
Bug Fixes
- Fix AddressSanitizer memory leak in test_word_shadowing with VmFixture
Testing
- All 12 tests passing (100%)
- No memory leaks detected with AddressSanitizer
- Hardware integration tests on ESP32-C6
🤖 Generated with Claude Code