1852 – you get opCall missing when cast to a struct(diagnostic)

struct mystruct{}
void main()
{
	mystruct* a= new mystruct;
	mystruct b= cast(mystruct)a;
}
teststructnew.d(5): Error: no property 'opCall' for type 'mystruct'
teststructnew.d(5): Error: function expected before (), not 1 of type int
teststructnew.d(5): Error: no property 'opCall' for type 'mystruct'
teststructnew.d(5): Error: function expected before (), not 1 of type int
teststructnew.d(5): Error: cannot implicitly convert expression (1(1(a))) of type int to mystruct
I think message: cannot implicitly convert from type mystruct* to mystruct would be more clear.

it's not implicitly , just the cast should be banned. 

Even it's banned, the compiler should give better message to the user.

Fixed dmd 1.028 and 2.012