Increment `runtime_param_index` for zero sized parameters
`runtime_param_index` is used to get the parameter type from `fn_type`,
but this variable was not incremented for zero sized parameters, causing
two zero sized parameters of different type to cause miss complication.
f78d3b27caJimmi Holst Christensen committed on 1/7/2022, 9:10:36 PMparent9d6bef4