cgen: fix error for printing multi fixed array (#14141)

vlib/v/gen/c/array.v

@@ -78,7 +78,7 @@ fn (mut g Gen) array_init(node ast.ArrayInit) {
 			g.inside_lambda = false
 			return
 		}
-		need_tmp_var := g.inside_call && !g.inside_struct_init
+		need_tmp_var := g.inside_call && !g.inside_struct_init && node.exprs.len == 0
 		mut stmt_str := ''
 		mut tmp_var := ''
 		if need_tmp_var {

vlib/v/gen/c/fn.v

@@ -2044,6 +2044,12 @@ fn (mut g Gen) ref_or_deref_arg(arg ast.CallArg, expected_type ast.Type, lang as
 		g.expr(arg.expr)
 		g.write('->val')
 		return
+	} else if arg.expr is ast.ArrayInit {
+		if arg.expr.is_fixed {
+			if !arg.expr.has_it {
+				g.write('(${g.typ(arg.expr.typ)})')
+			}
+		}
 	}
 	g.expr_with_cast(arg.expr, arg_typ, expected_type)
 	if needs_closing {

vlib/v/tests/inout/printing_multi_fixed_array.out

@@ -0,0 +1 @@
+[[1, 2], [3, 3]]

vlib/v/tests/inout/printing_multi_fixed_array.vv

@@ -0,0 +1,4 @@
+fn main() {
+	a := [[1, 2]!, [3, 3]!]!
+	println([[a[0][0], a[0][1]]!, [a[1][0], a[1][1]]!]!)
+}