Why it doesn't compile in D 2.0?

[aarti_pl]

class Test {
    string t1 = "test";               //Ok!
    char[] t2 = "test".dup;   //Compile error
}
void main(char[][] args) {
}

Error:
hello.d(3): Error: cannot evaluate _adDupT((& 
D12TypeInfo_Aya6__initZ),"test") at compile time
hello.d(3): Error: cannot evaluate _adDupT((& 
D12TypeInfo_Aya6__initZ),"test") at compile time

Is there workaround?

BR
Marcin Kuszczak
(aarti_pl)