extern_info.h - add named parameters to functions

[eugene.litvinov]

We use generated extern_info.h file in IDE for code auto-complete.

It would be great, if this file will include named parameters, for example, now:

class Object : Node {
 int getIntersection(vec3,vec3,int,int);
}

need like in help:

class Object : Node {
 int getIntersection(vec3 p0,vec3 p1,int surface,int ret[]);
}

[binstream]

Unfortunately it isn't possible for now.