tests: add interface_many_named_test.v regression test (closes #10013)

vlib/v/tests/interface_edge_cases/interface_many_named_test.v

@@ -0,0 +1,26 @@
+interface Named {
+	name string
+}
+
+struct Many {
+pub:
+	many []Named
+}
+
+struct Cat {
+pub:
+	name string
+}
+
+struct Dog {
+pub:
+	name string
+}
+
+fn test_many_named() {
+	c := Cat{}
+	d := Dog{}
+	m := Many{
+		many: [c, d]
+	}
+}