forked from loafle/openapi-generator-original
* fix(rust): discriminator mapping to serde rename Discriminator mapping has been ignored in some cases. Even existing samples had wrong definition in some cases This PR addresses this * fix(rust): `oneOf` generation for client Solves #17869 and #17896 and also includes unmerged $17898 Unfortunately it affects quite a lot of code, but we can see that only client-side models were affected by re-generation. I tried to split this PR to several, but they're really coupled and hard to create a chain of PRs. * fix: indentation in `impl Default` * missing fixes * fix: correct typeDeclaration with unaliased schema * style: improve indentation for models * fix: user toModelName for aliases of oneOf * refactor: unify `getTypeDeclaration` for rust * cover the case when `mapping` has the same `ref` for different mapping names * test: add test for previous change * style: remove extra qualified path to models * add some comments * fix(build): use method of `List` instead of specific for `LinkedList`