Interpreter is treating a comment character as an identifier character.

When bringing dhall-lang up in a REPL I stumbled across a warning about a character in a haddock comment. Should the interpreter be treating a comment character as an identifier character?

https://github.com/dhall-lang/dhall-haskell/issues/646#issuecomment-430776320

{-# LANGUAGE CPP #-}

data Expr s a
    -- | > Combine x y ~ x ∧ y
    = Combine (Expr s a) (Expr s a)

> stack runghc -- --interactive Intersect.hs

Intersect.hs:13:29: error:
     warning: treating Unicode character <U+2227> as identifier character
     rather than as '^' symbol [-Wunicode-homoglyph]
        -- | > Combine x y ~ x ∧ y
                               ^
   |
13 |     -- | > Combine x y ~ x ∧ y
   |                            ^
1 warning generated.

> stack runghc -- --version
runghc 8.4.3

There's a unicode-homoglyph repo with the reproduction.

Trac metadata

Trac field	Value
Version	8.4.3
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	GHCi
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system	Unknown/Multiple
Architecture