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Allowed to create non-alphanumeric data / newtype constructor that cannot be used

I can't remember if this had been filed before but this is present in both 7.8.4 and 8.0.1:

Prelude> newtype A = (****) Int

There is no way to use the constructor ****:

Prelude> :i A
newtype A = **** Int    -- Defined at <interactive>:3:1
Prelude> :i ****

Top level: Not in scope: ‘****’
Prelude> :t (****)

<interactive>:1:1: Not in scope: ‘****’
Prelude> 
Trac metadata
Trac field Value
Version 8.0.1
Type Bug
TypeOfFailure OtherFailure
Priority normal
Resolution Unresolved
Component Compiler
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system
Architecture
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