Commit a74ec37c authored by Simon Peyton Jones's avatar Simon Peyton Jones Committed by Marge Bot

Better loop detection in findTypeShape

Andreas pointed out, in !3466, that my fix for #18304 was not
quite right.  This patch fixes it properly, by having just one
RecTcChecker rather than (implicitly) two nested ones, in
findTypeShape.
parent 1b3d13b6
Pipeline #21558 failed with stages
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