Future-proof the code to classify static array members of structs. I made sure to create a merge conflict with the code attached to ticket #229 (which comments this code out due to changes in the DMD 'Type' type hierarchy) so that if it gets committed as-is there will be a human looking at it.

#ifndef LDC_GEN_AA_H
#define LDC_GEN_AA_H

DValue* DtoAAIndex(Loc& loc, Type* type, DValue* aa, DValue* key, bool lvalue);
DValue* DtoAAIn(Loc& loc, Type* type, DValue* aa, DValue* key);
void DtoAARemove(Loc& loc, DValue* aa, DValue* key);

#endif // LDC_GEN_AA_H