Caret diagnostics interact badly with hsc2hs

I saw this recently,

libraries\Win32\Graphics\Win32\Window.hsc:188:46: error:
    Not in scope: type constructor or class `Int32'
    |
188 | cW_USEDEFAULT = fromIntegral (#{const CW_USEDEFAULT} :: Int32)
    |                                              ^^^^^

Clearly the caret is pointing to the wrong place in the line. Note that the file in question is a hsc2hs file.

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	Rufflewind
Operating system
Architecture