test: remove resolved/fixed issue writeups

Delete the issues/*.md whose writeup carries a RESOLVED or FIXED banner;
only the open issues (0030, 0148) remain.

issues/0070-forward-alias-global-annotation-before-fixpoint.md

@@ -1,113 +0,0 @@
-# 0070 — forward alias in top-level global annotation reaches LLVM verifier
-
-> **RESOLVED.** Root cause: issue 0069's `resolveForwardIdentifierAliases`
-> fixpoint runs at the END of `Lowering.scanDecls`, but the same scan loop
-> resolved top-level `var_decl` global annotations (and typed module-constant
-> annotations) via `self.resolveType(ta)` BEFORE that fixpoint ran — so a forward
-> alias (`A :: B; B :: i32; g : A = 7;`) was still absent from
-> `type_alias_map`, `resolveType` fabricated an empty-struct stub, and the global
-> got a type mismatching its initializer at LLVM verification (the typed-const
-> path silently mistyped the constant instead).
-> Fix: split `scanDecls` into two passes. Pass 1 registers function/type/alias
-> facts; then `resolveForwardIdentifierAliases` converges the aliases; then pass 2
-> registers top-level `var_decl` globals (`registerTopLevelGlobal`) and typed
-> module constants (`registerTypedModuleConst`), so their annotations resolve
-> against the converged alias map. Globals/typed-consts can't be named in a type
-> position, so deferring them past type/alias registration is order-safe; the
-> untyped module-const branch (no annotation to resolve) stays in pass 1.
-> Regression: `examples/0133-types-forward-alias-global.sx`.
-
-## Symptom
-
-A forward identifier type alias used as a top-level global's type annotation
-does not resolve before the global is registered, producing an LLVM verifier
-failure instead of compiling as the alias target type.
-
-Observed:
-
-```text
-LLVM verification failed: Global variable initializer type does not match global variable type!
-ptr @g
-```
-
-Expected: `A :: B; B :: i32; g : A = 7;` should type `g` as `i32` and compile/run
-the same way as the ordered alias form.
-
-## Reproduction
-
-```sx
-A :: B;
-B :: i32;
-
-g : A = 7;
-
-main :: () -> i32 {
-    return g;
-}
-```
-
-Run:
-
-```sh
-./zig-out/bin/sx run .sx-tmp/probe-0069-forward-alias-global.sx
-```
-
-The repro is standalone; the inline source above is sufficient to recreate the
-scratch file under `.sx-tmp/`.
-
-## Investigation prompt
-
-Fix issue 0070: a forward identifier type alias used in a top-level global
-annotation must resolve before that global's type is registered.
-
-Context:
-- Issue 0069 (`49a383d`) added `Lowering.resolveForwardIdentifierAliases`, a
-  fixpoint post-pass at the end of `scanDecls`, to resolve top-level
-  identifier-RHS aliases like `A :: B; B :: i32;`.
-- That works for aliases used later in function bodies because the A2.4
-  unknown-type pass and body lowering run after `scanDecls`.
-- But top-level `var_decl` annotations are resolved inside the same `scanDecls`
-  loop before `resolveForwardIdentifierAliases(decls)` is called. So
-  `g : A = 7;` can be typed while `A` is still absent from
-  `ProgramIndex.type_alias_map`.
-- Suspected area: `src/ir/lower.zig`, `Lowering.scanDecls`, especially the
-  ordering between `.const_decl` alias collection, the new
-  `resolveForwardIdentifierAliases`, and the `.var_decl` branch that calls
-  `self.resolveType(ta)`.
-
-Likely fix:
-- Split the scan ordering so all top-level type declarations and identifier
-  aliases converge before any top-level global annotation is resolved.
-- One possible shape: first scan/register function/type/alias facts, run the
-  forward-alias fixpoint, then handle top-level `var_decl` global registration
-  and literal module constants that require resolved annotation types.
-- Do not reintroduce issue 0068: `NotAType :: 123; v: NotAType` must still emit
-  `unknown type 'NotAType'`.
-- Do not fabricate stubs while trying to resolve the forward alias. The alias
-  facts should still come from `ProgramIndex.type_alias_map` and real
-  `TypeTable.findByName` hits.
-
-Verification:
-- Add a focused regression, likely in the `01xx` types block:
-
-```sx
-A :: B;
-B :: i32;
-g : A = 7;
-main :: () -> i32 { return g; }
-```
-
-- Keep `examples/0132-types-forward-type-alias.sx`,
-  `examples/0116-types-type-alias-size-align.sx`,
-  `examples/0201-generics-generic-struct.sx`, and
-  `examples/1117-diagnostics-value-const-as-type-rejected.sx` green.
-- Run:
-
-```sh
-zig build
-zig build test
-bash tests/run_examples.sh
-```
-
-Expected result: the forward-alias global program exits 7, issue 0068 remains
-rejected with a diagnostic, and the full suite passes.