Surface rename of the signed integer family: s1..s64 become i1..i64
(u1..u64, usize, isize unchanged). 'string' keeps the s-prefix arm in
name classification; width parsing moves to the i-prefix arm next to
isize.
Internal TypeId tags follow the surface (.s8/.s16/.s32/.s64 ->
.i8/.i16/.i32/.i64), as do mono-key mangle fragments (ptr_i64,
tu_i64_bool) and all display/diagnostic formatting (i{d}).
Migrated in the same sweep: stdlib + examples + issue repros + FFI C
companions (shared symbol names like ffi_id_i64), expected
stdout/stderr/ir snapshots, specs.md, readme.md, CLAUDE.md/AGENTS.md,
implementation_plan.md, docs/, issue writeups. Vendored stb_image and
historical flow state left untouched.
zig build test: 426/426; examples suite: 595/595.
Triage pass: every issue file in `issues/` was re-verified against
HEAD. Three (0041, 0042, 0043) reproduce no longer — they were
silently fixed by adjacent work since the issue was filed. 0047
landed in the previous commit. All four header sections now lead
with **FIXED** + a one-line locator so the next reader doesn't
re-investigate.
After this, `issues/` is the actual open-issue list:
| Issue | Status |
|---|---|
| 0041 | FIXED (silently, by alias/parser work) |
| 0042 | FIXED (silently, type_alias_map lookup landed) |
| 0043 | FIXED (silently, lazy-lower foreign-class dispatch) |
| 0044 | FIXED |
| 0045 | FIXED |
| 0046 | FIXED |
| 0047 | FIXED (commit 0119c9c) |
| 0048 | FIXED (commit 0ede097) |
| 0049 | FIXED (commit b5301c4) |
| 0050 | FIXED (commit 5316bf7) |
No open issues remain. The files stay in tree as a record; new
issues take the next free number (0051).
Surfaced while adding the `--- build done ---` delimiter
(commit 2993072). `#run print()` output is buffered by the
interp and flushed via std.debug.print → stderr at
core.zig:187/190; JIT runtime `print()` writes via libc
write(1, ...) → stdout. Same `print` call from the user's
viewpoint, different streams in practice.
Not blocking step 3 — tests capture both streams via 2>&1 so
snapshots are unaffected. Issue file documents the fix path
(move the two `std.debug.print` flushes in core.zig to
stdout-writes) for a future session.
