Allow parameterless constructors in record structs #52240
Description
[This issue is referenced in source]
When the "record structs" feature gets merged with the "parameterless struct constructor" feature, we may need to make some adjustments to record structs.
Some scenarios are interesting:
record struct S1(); // is this allowed?
_ = new S2(); // what is executed?
record struct S2(int I)
{
int Field = M(I);
static int M(int i) => i;
}
record struct S3
{
int Field = 3; // is this allowed?
}
record struct S4()
{
int Field = 3; // is this allowed?
}