Syntactically strips the nullability from this type.
If the type is T1 | ... | Tn, and Ti references to Null,
then return T1 | ... | Ti-1 | Ti+1 | ... | Tn.
If this type isn't (syntactically) nullable, then returns the type unchanged.
The type will not be changed if explicit-nulls is not enabled.
Syntactically strips the nullability from this type.
If the type is T1 | ... | Tn, and Ti references to Null,
then return T1 | ... | Ti-1 | Ti+1 | ... | Tn.
If this type isn't (syntactically) nullable, then returns the type unchanged.
The type will not be changed if explicit-nulls is not enabled.