Avi Kivity 5b5b8b3264 lua: be compatibile with Lua 5.4's lua_resume() ...

Lua 5.4 added an extra parameter to lua_resume()[1]. The parameter
denotes the number of arguments yielded, but our coroutines
don't yield any arguments, so we can just ignore it.

Define a macro to allow adding extra stuff with Lua 5.4,
and use it to supply the extra parameter.

[1] https://www.lua.org/manual/5.4/manual.html#8.3

Closes #7324

2020-10-04 14:07:51 +03:00

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