Regression in Natural desugaring

My recent merged patch "Built-in Natural literals in Core" https://phabricator.haskell.org/rGHCfe770c211631e7b4c9b0b1e88ef9b6046c6585ef introduced a regression when desugaring large numbers.

Patch coming.

Trac metadata

Trac field	Value
Version	8.4.3
Type	Bug
TypeOfFailure	OtherFailure
Priority	highest
Resolution	Unresolved
Component	Compiler
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system
Architecture

changed milestone to %8.6.1

changed weight to 10

added Tbug Trac import labels

Trac metadata

Trac field	Value
Differential revisions	- → D4885

mentioned in commit 987b5e7f

added 1 deleted label

closed

Merged in 31f7d21b.

Trac metadata

Trac field	Value
Resolution	Unresolved → ResolvedFixed

removed 1 deleted label

added incorrect runtime result label

added Phighest label