Regression: Syntax error in -ddump-minimal-imports for records in GHC 8.0

I found a bug in GHC 8.0.1.

File:

import Data.Version

main = print (versionBranch undefined, versionTags undefined)

Run:

~/.stack/programs/x86_64-linux/ghc-8.0.1/bin/ghc --make Main.hs -ddump-minimal-imports && cat Main.imports 

import Data.Version ( Version(versionTags versionBranch) )

See how there's a comma missing after versionTags? This happens for all record functions.

It works fine in GHC 7.10.3:

~/.stack/programs/x86_64-linux/ghc-7.10.3/bin/ghc --make Main.hs -ddump-minimal-imports && cat Main.imports 

import Data.Version ( Version(versionBranch, versionTags) )

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	nh2
Operating system
Architecture

changed milestone to %8.0.2

changed weight to 5

added Tbug Trac import labels

Fixed in HEAD by

commit 018487e686793e22efd595491be5b5305ed2b9c0
Author: Matthew Pickering <matthewtpickering@gmail.com>
Date:   Fri May 6 17:15:54 2016 +0100

    Fix pretty printing of IEThingWith

Merge to stable branch (if it hasn't been already).

Simon

added 1 deleted label

closed

Merged to ghc-8.0 as 1d46fd5e.

Trac metadata

Trac field	Value
Resolution	Unresolved → ResolvedFixed

removed 1 deleted label

added Pnormal label