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nyash-codex 076f193f76 refactor(mir): Extract TypeContext from MirBuilder (Phase 136 follow-up 1/7)

## Summary
Extract type-related fields into dedicated TypeContext for better code
organization and maintainability. First step of 7-context refactoring plan.

## Changes
- **New**: src/mir/builder/type_context.rs
  - Consolidates value_types, value_kinds, value_origin_newbox
  - Provides clean API for type operations
  - BTreeMap/HashMap as appropriate for determinism

- **Modified**: src/mir/builder.rs
  - Add type_ctx field to MirBuilder
  - Deprecate old fields (backward compat)
  - Add sync helpers for gradual migration
  - Initialize type_ctx in new()

- **Doc**: phase-136-context-box-progress.md
  - Track refactoring progress (1/7 complete)
  - Document design principles
  - Plan next steps (CoreContext)

## Impact
- 16 files with 113 deprecated field usages
- No breaking changes (gradual migration)
- All tests pass (997/997)

## Test Results
✅ cargo build --release (warnings only)
✅ cargo test --release --lib (997 passed)
✅ phase135_trim_mir_verify.sh (PASS)
✅ phase132_exit_phi_parity.sh (3/3 PASS)

## Next Step
CoreContext extraction (ValueId/BlockId generators)

Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

2025-12-15 19:59:55 +09:00

llvm

docs: add MIR13 mode doc and set PHI-off as default; bridge lowering split (if/loop/try); llvmlite resolver stabilization; curated runner default PHI-off; refresh CURRENT_TASK.md

2025-09-17 10:58:12 +09:00

main

refactor(mir): Extract TypeContext from MirBuilder (Phase 136 follow-up 1/7)

2025-12-15 19:59:55 +09:00

self_current_task

phase: 20.49 COMPLETE; 20.50 Flow+String minimal reps; 20.51 selfhost v0/v1 minimal (Option A/B); hv1-inline binop/unop/copy; docs + run_all + CURRENT_TASK -> 21.0

2025-11-06 15:41:52 +09:00

selfhost

phase: 20.49 COMPLETE; 20.50 Flow+String minimal reps; 20.51 selfhost v0/v1 minimal (Option A/B); hv1-inline binop/unop/copy; docs + run_all + CURRENT_TASK -> 21.0