Backport "Parser simple expression error recovery change from null to ???" to LTS
#20790
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…19103) Previously, simpleExpr was recovered as `Literal(Constant(null))` which led to some errors in interactive. Type inference in Scala 3 works on whole chain, thus type vars were inferred as union type of `Null` because of this very reason. Recovering such errors as `unimplementedExpr` which has a type of `Nothing`, solves the issue. [Cherry-picked 98184f1][modified]
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No regressions detected in the community build up to lts-19356. |
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Backports #19103 to the LTS branch.
PR submitted by the release tooling.
[skip ci]