RFR: 8257398: Enhance debug output in Type::check_symmetrical

Mon Nov 30 10:39:57 UTC 2020

On Mon, 30 Nov 2020 09:52:32 GMT, Tobias Hartmann <thartmann at openjdk.org> wrote:

> When working on C2 typesystem changes for project Valhalla, I got annoyed by always having to add debug information for the "meet not commutative" failure in `Type::check_symmetrical`. We should add output similar to the "meet not symmetric" case.
> 
> Thanks,
> Tobias

Looks good.

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Marked as reviewed by vlivanov (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/1513