experimental-non-null assign string[] to string?[]
Code example:
string[] a = {"a", "b", "c"};
string?[] s = {};
s = a; // Assignment: Cannot convert from `string[]' to `string?[]'
Code example:
string[] a = {"a", "b", "c"};
string?[] s = {};
s = a; // Assignment: Cannot convert from `string[]' to `string?[]'