Backport "Fix incorrect caching with dependent method parameters" to LTS #13
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The added test case used to fail Ycheck:typer with the seemingly identicals:
Found: (a: (aa : A{type B = Int}), b: a.B): CCPoly[(aa : A{type B = Int})]
Required: (a: (aa : A{type B = Int}), b: a.B): CCPoly[(aa : A{type B = Int})]
In fact one of the `aa` is a a TypeVar instantiated to `A {type B = Int }`. The
MethodType comparison failed the signature check because the `a.B` where `a` is
backed by a type variable had a stale signature cached.
Fixed by changing `isProvisional` to traverse ParamRefs.
[Cherry-picked c32e535][modified]
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No regressions detected in the community build up to backport-lts-3.3-22148. |
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Backports scala#21699 to the 3.3.5.
PR submitted by the release tooling.
[skip ci]