ghci063 failing on Darwin

--- /dev/null	2019-01-16 12:17:41.000000000 -0800
+++ ghci/scripts/ghci063.run/ghci063.run.stderr.normalised	2019-01-16 12:17:42.000000000 -0800
@@ -0,0 +1,2 @@
+
+B.hs:1:1: parse error on input ‘***’

The test in question is just a normal ghci_script test:

:! echo module A where {} >A.hs
:! echo module B where { import A } >B.hs

:load B

-- We're going to replace B.hs with an invalid module but without
-- changing its timestamp.  A :reload should *not* look at the
-- contents of the file, because the timestamp hasn't changed.
:! cp B.hs B.hs-copy
:! touch -r B.hs B.hs-copy
:! echo "*** INVALID ***" >B.hs
:! touch -r B.hs-copy B.hs

:reload

-- Put the original file back, now it should work
:! cp B.hs-copy B.hs
:reload

I have no idea why GHCi would be trying to parse the !echo, much less only on Darwin.

This is currently the last issue Darwin issue keeping us from setting allow_failure to false so I'm going to mark this as broken.

Trac metadata

Trac field	Value
Version	8.6.3
Type	Bug
TypeOfFailure	OtherFailure
Priority	highest
Resolution	Unresolved
Component	Compiler
Test case
Differential revisions
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Related
Blocking
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Operating system
Architecture