https://issues.dlang.org/show_bug.cgi?id=23626
--- Comment #1 from johanenge...@weka.io --- This frontend change "fixes" the errors (3 lines removed): diff dmd/mtype.d: ``` /** Extends TypeNext.constConv by also checking for matching attributes **/ override MATCH constConv(Type to) { - // Attributes need to match exactly, otherwise it's an implicit conversion - if (this.ty != to.ty || !this.attributesEqual(cast(TypeFunction) to)) - return MATCH.nomatch; ``` --