id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	os	architecture	failure	difficulty	testcase	blockedby	blocking	related
3063	Only at separate compilation: Conflicting family instance declarations	dorinho		"Take the following class:

class C a where  
    type B a

Then the following instances only throw «Conflicting family instance declarations», 
if compiled separately:

instance C a where
    type B a = X a

instance C (Int,a) where
    type B (Int,a) = X a

Cheers,
    Dorinho"	bug	closed	normal		Compiler	6.10.1	invalid			Unknown/Multiple	Unknown/Multiple