dotnet/roslyn

need a better error message for invalid lambda capturing of ref-like types

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#22.058 aperta il 11 set 2017

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See the use of ERR_AnonDelegateCantUseLocal

We are reusing the same errors for ref variables and for ref-like values. In the second case it could be confusing, although coming up with a better error is not easy. It should not at least say "ref" - that is not a problem here, probably "ref-like types"

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