feat(joinir): Phase 222-2 ConditionPatternBox normalization implementation
Phase 222: If Condition Normalization - Part 2
Goal: Support '0 < i', 'i > j' patterns in addition to 'i > 0'
Changes:
1. condition_pattern.rs (+160 lines):
- Added ConditionValue enum (Variable | Literal)
- Added NormalizedCondition struct (left_var, op, right)
- Added flip_compare_op() for operator reversal
- Added binary_op_to_compare_op() converter
- Added normalize_comparison() main normalization function
- Extended analyze_condition_pattern() to accept 3 cases:
* Phase 219: var CmpOp literal (e.g., i > 0)
* Phase 222: literal CmpOp var (e.g., 0 < i) → normalized
* Phase 222: var CmpOp var (e.g., i > j)
- Added 9 unit tests (all passing)
2. loop_update_summary.rs (cleanup):
- Commented out obsolete test_typical_index_names
- Function is_typical_index_name() was removed in earlier phase
Test results:
- 7 normalization tests: PASS ✅
- 2 pattern analysis tests: PASS ✅
Next: Phase 222-3 - integrate normalization into is_if_sum_pattern()
Status: Ready for integration
f0536fa330