Fixed:

• Erroneous examples in Clash.Annotation.TopEntity documentation #646 and #654
• unconcat cannot be used as initial/reset value for a register #1756
• showX now doesn't crash if a spine of a Vec is undefined
• ~ISACTIVEENABLE in blackboxes works again, and now acts on Signal dom Bool in addition to Enable dom. Since #1368, enable lines were always generated even if they were known to be always enabled. Fixes #1786.
• clash --show-options now shows -fclash-* options in GHC 9.0 #1787
• makeRecursiveGroups now correctly identifies mutual recursion between global binders (#1796).