Wed Oct 10 09:47:31 PDT 2007 [EMAIL PROTECTED]
* Fix Trac #1759: do not let ticks get in the way of spotting trivially-true
guards
GHC spots that an 'otherwise' guard is true, and uses that knowledge to
avoid reporting spurious missing-pattern or overlaps with -Wall.
The HPC ticks were disguising the 'otherwise', which led to this failure.
Now we check. The key change is defining DsGRHSs.isTrueLHsExpr.
Test is ds062
M ./compiler/deSugar/DsGRHSs.lhs -4 +15
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