id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	os	architecture	failure	difficulty	testcase	blockedby	blocking	related
3272	GHC panics when contexts are put late in function types	dmwit		"Here's a simple transcript from ghci:
{{{
Prelude> :m + Data.List
Prelude Data.List> :t genericLength :: [a] -> Num b => b
ghc: panic! (the 'impossible' happened)
  (GHC version 6.10.3 for x86_64-unknown-linux):
	TcTyFuns.flattenType: unexpected PredType

Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug
}}}"	bug	closed	normal	6.12.1	Compiler (Type checker)	6.10.3	fixed			Unknown/Multiple	Unknown/Multiple		Unknown