3665 – Regression(1.051, 2.036) Assignment with array slicing does not work

The following piece of code produces the error "Bug.d(13): Error: 'K[] = this.hash[]' is not of integral type, it is a ulong[]" with DMD 1.053 and DMD 1.054. It worked without problems in DMD 1.050.
final class Bug
{
	private ulong hash[8];
	protected void transform(ubyte[] input)
	{
		ulong K[8];
		ulong block[8];
		ulong state[8];
		block[] = cast(ulong[]) input;
		state[] = block[] ^ (K[] = hash[]);
	}
}

Workaround is to add [], changing this:
state[] = block[] ^ (K[] = hash[]);
into
state[] = block[] ^ (K[] = hash[])[];

This is very simple: in arrayop.c, the assignment operators have been left out of the lists of valid operations.
PATCH:
bool isArrayOpValid(Expression *e), line 54.
 case TOKand:
 case TOKor:
 case TOKpow:
 case TOKand:
 case TOKor:
 case TOKpow:
+ case TOKassign:
+ case TOKaddass:
+ case TOKminass:
+ case TOKmulass:
+ case TOKdivass:
+ case TOKmodass:
+ case TOKxorass:
+ case TOKandass:
+ case TOKorass:
+ case TOKpowass:
 return isArrayOpValid(((BinExp *)e)->e1) && isArrayOpValid(((BinExp *)e)->e2);
And again in isArrayOperand(), line 600
 case TOKand:
 case TOKor:
+ case TOKpow:
+ case TOKassign:
+ case TOKaddass:
+ case TOKminass:
+ case TOKmulass:
+ case TOKdivass:
+ case TOKmodass:
+ case TOKxorass:
+ case TOKandass:
+ case TOKorass:
+ case TOKpowass:
 case TOKneg:
 case TOKtilde:
 return 1;

http://www.dsource.org/projects/dmd/changeset/681