Three tests failed on the extracted tree for a reason that was not a port
defect: disasm_goldens.rs resolves its fixtures through a relative path to
xenia-cpu/tests/golden/, and I had copied the test without the data.
The fixtures (base + extended mnemonics, VMX128 registers) and the generator
test now live in sylpheed-ppc, and the shim test in sylpheed-xexdb points at
them. serde/serde_json become dev-dependencies of sylpheed-ppc, which the
fixtures need and the library does not.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>