Duplicate tests that are run twice as both C and C++ tests to fix parallel make: overload_extend

Examples/test-suite/go/overload_extend_c_runme.go

@@ -0,0 +1,22 @@
+package main
+
+import "./overload_extend_c"
+
+func main() {
+	f := overload_extend_c.NewFoo()
+	if f.Test().(int) != 0 {
+		panic(0)
+	}
+	if f.Test(3).(int) != 1 {
+		panic(0)
+	}
+	if f.Test("hello").(int) != 2 {
+		panic(0)
+	}
+	if f.Test(float64(3), float64(2)).(float64) != 5 {
+		panic(0)
+	}
+	if f.Test(3.0).(float64) != 1003 {
+		panic(0)
+	}
+}