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sx/examples
agra 64dcbca06a ffi issue-0049: new-form variadic cross-module LLVM crash — xfail lock-in
Migrating stdlib's `path_join` to the new variadic syntax
(`(..parts: []string) -> string`) surfaces a latent compiler bug:
`resolveParamType` and `packVariadicCallArgs` treat the new-form
declaration the same as the legacy `parts: ..string` and wrap the
element type in `sliceOf` regardless of whether it already is one.
The new form's `[]string` becomes `[][]string`; the call-site
marshal pack emits `[N x string]` (correct) but the callee stores
its slice param into a `[]([]string)`-typed slot. The shape
mismatch propagates as null/undef Refs that crash
`LLVMBuildExtractValue` inside `emitStrCmp` during emission.

`examples/121-ios-sim-bundle.sx` (existing) and the new focused
`examples/174-new-form-variadic-cross-module.sx` both fail today
with the segfault. The next commit fixes `resolveParamType` +
`packVariadicCallArgs` so both flip green. Stdlib's `format` /
`print` / `open` and the example fixtures stay on the legacy form
in this commit — they migrate in the follow-up cleanup commit.
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