Fix IsBlittable flag bug on types. #34613
Merged
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The issue is that we are automatically assuming that types are blittable until proven otherwise while traversing the list of fields declared on the type. In the case of a type with no fields, we have to also check if the parent type is blittable, before blindly setting the flag to true (Ex: what if the base type has non-blittable fields?)
Fixes #33366