[yuyi98]

This PR fix printing fn call of returning c struct value (fix #23104).

• Fix printing fn call of returning c struct value.
• Add test.

csize.h

struct Size {
   int width;
	int height;
};

#include "@VMODROOT/csize.h"

struct C.Size {
	width  int
	height int
}

type Size = C.Size

fn get_size() C.Size {
	return C.Size{11, 22}
}

fn get_csize() Size {
	return Size(C.Size{11, 22})
}

fn main() {
	println(get_size())
	assert true
	println(get_csize())
	assert true
}

_{Huly®: V_0.6-21543}

[spytheman]

Excellent work.