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1ec87d1770
TypeArguments::IsUninstantiatedIdentity predicate is checking if
instantiator type arguments could be reused when instantiating
given type arguments (when given type arguments repeat type parameters).
This predicate was not accounting for nullable and legacy type
parameters which could change nullability of types when instantiated.
For example:
class A<T> {}
1. instantiator type arguments [int], instantiating A<T?> results in
[int?] type arguments vector, so instantiator type arguments should
not be reused.
2. instantiator type arguments [int], instantiating A<T*> results in
[int*] type arguments vector so instantiator type arguments should
not be reused.
Change-Id: I1e041486829e8ac0cfd3ce59d0ec5164a0f3724c
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/136709
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Régis Crelier <regis@google.com>
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