This is an unofficial snapshot of the ISO/IEC JTC1 SC22 WG21 Core Issues List revision 112e. See http://www.open-std.org/jtc1/sc22/wg21/ for the official list.
The term “implicit conversion sequence” is now used in some non-call contexts (e.g., 188.8.131.52 [expr.static.cast] paragraph 4, 7.6.16 [expr.cond] paragraph 4, 7.6.10 [expr.eq] paragraph 4) ) and it is not clear that the current definition is suited for these additional uses. In particular, passing an argument in a function call is always copy-initialization, but some of these contexts require consideration of direct-initialization.
Notes from the December, 2016 teleconference:
The problem is that overload resolution relies on copy initalization and thus does not describe direct initialization. See also issue 1781.