Régis Crelier
c48263e901
This reverts commit 6a98e2719e.
Reason for revert: Unexpected test failures
Original change's description:
> [VM/nnbd] Canonicalize TypeParameter objects in the VM.
>
> Prior to this CL, type parameters were all assumed canonical, even duplicate ones.
>
> Per a new convention introduced in this CL, the type parameter array in generic classes and generic functions contains canonical type parameters. As these type parameters get cloned with a different nullability, they are inserted in a new hash table of canonical type parameters.
>
> This fixes performance issue https://github.com/dart-lang/sdk/issues/41421
>
> Change-Id: I9086158fa6b6261e9997bb50edec6d7c54abbfa1
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/148223
> Commit-Queue: Régis Crelier <regis@google.com>
> Reviewed-by: Ryan Macnak <rmacnak@google.com>
TBR=rmacnak@google.com,alexmarkov@google.com,asiva@google.com,regis@google.com
Change-Id: I0ca3b6b66e2281c285eba6b564f78c0e6b2f2217
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/150265
Reviewed-by: Régis Crelier <regis@google.com>
Commit-Queue: Régis Crelier <regis@google.com>