[Bug c++/89356] [9 Regression] sorry, unimplemented: mangling implicit_conv_expr in nodejs8 package since r268321

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89356

--- Comment #5 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Fixed by r268969, I'm adding new tests.