This updates the handling of member access on extension type receivers
to use the added `nonTypeVariableBound` and the `hasNonObjectMemberAccess`
properties.
The `nonTypeVariableBound` replaces the `resolveTypeParameterType`,
updated to taking the nullablity into account when going through
type variable bounds.
Change-Id: Ia2eb115c208350cdf011948177b15ebbc984fcac
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/333540
Reviewed-by: Srujan Gaddam <srujzs@google.com>
Reviewed-by: Chloe Stefantsova <cstefantsova@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Johnni Winther
3082602bf7