Modifiers (like "const") are not added to tuples by DMD64 D Compiler v2.085.1:
```
import std.meta : AliasSeq;
alias t = AliasSeq!(int, float); // create tuple (int, float)
alias tc = const(t);
static assert(is(tc[1] == const float));
```
a.d(5): Error: static assert: is(float == const(float)) is false
Not quite sure if this is a compiler bug or intended behavior.
Comment #1 by simen.kjaras — 2019-05-05T14:39:29Z
*** This issue has been marked as a duplicate of issue 19794 ***