Leonardo de Moura 8df7c7b02d feat(kernel/type_checker): remove fallback that expands opaque definitions in the type checker ... We should not rely on this feature. It can be quite expensive. We invoke is_convertible in several places, in particular, if we are using overloading. For example, the frontend uses is_convertible to check which overload should be used. Thus, it will make several calls such as is_convertible(num, Nat) If is_convertible starts unfolding opaque definitions, we would keep expanding num. Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>		2014-02-09 11:31:24 -08:00
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lean	feat(kernel/type_checker): remove fallback that expands opaque definitions in the type checker	2014-02-09 11:31:24 -08:00
lua	refactor(kernel): remove semantic attachments from the kernel	2014-02-02 14:48:27 -08:00