Inconsistent parsing of lifted list constructor

The notes for HsType explain that '[] should parse as a HsExplicitListTy but it currently parses as a HsTyVar.

I think this shift-reduce conflict might be to blame?

state 432 contains 1 shift/reduce conflicts.

        atype -> SIMPLEQUOTE '[' . comma_types0 ']'         (rule 318) 
        sysdcon -> '[' . ']'                                (rule 613) 

    Conflict: ']' (empty comma_types0 reudes)

TODO: Why?

Trac metadata

Trac field	Value
Version	7.10.1
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Compiler
Test case
Differential revisions
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Blocking
CC	alanz
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Inconsistent parsing of lifted list constructor