The IR backend appears to have changed the way constructors are generated. This test works under th...

# jvm-ir-backend-feedback

[dinomite]

The IR backend appears to have changed the way constructors are generated. This test works under the old backend, but with the IR backend Jackson is unable to find the @JsonCreator-annotated constructor https://github.com/FasterXML/jackson-module-kotlin/blob/kotlin-jvm-ir-backend/src/test/kotlin/com/fasterxml/jackson/module/kotlin/test/github/Github145.kt#L33

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[dinomite]

Diffing the bytecode from the old backend and the new (IR) makes it clear why—the @JsonCreator (https://github.com/FasterXML/jackson-annotations/blob/master/src/main/java/com/fasterxml/jackson/annotation/JsonCreator.java#L46) annotation isn’t present in the IR-generator bytecode

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[dinomite]

I have a branch demonstrating this (it just turns on the IR compiler) here https://github.com/FasterXML/jackson-module-kotlin/commits/kotlin-jvm-ir-backend

[dinomite]

And the associated test failures https://app.circleci.com/pipelines/github/FasterXML/jackson-module-kotlin/225/workflows/5bf90210-e76c-446a-b6f4-3c4e142c8a99/jobs/861

[Ivan Kubyshkin [JetBrains]]

Created an issue - https://youtrack.jetbrains.com/issue/KT-45298.