add an example (and a test case) for same route path pattern but different macro function's input argument

Former-commit-id: f20ac838a08473b6b8114b407cb0dcde7765f634

_examples/routing/dynamic-path/same-pattern-different-func/main.go

@@ -0,0 +1,33 @@
+package main
+
+import "github.com/kataras/iris/v12"
+
+func main() {
+	app := newApp()
+	app.Logger().SetLevel("debug")
+	app.Listen(":8080")
+}
+
+func newApp() *iris.Application {
+	app := iris.New()
+
+	app.HandleMany(iris.MethodGet, "/ /api/{page:string suffix(.html)}", handler1)
+	app.Get("/api/{name:string suffix(.zip)}", handler2)
+
+	return app
+}
+
+func handler1(ctx iris.Context) {
+	reply(ctx)
+}
+
+func handler2(ctx iris.Context) {
+	reply(ctx)
+}
+
+func reply(ctx iris.Context) {
+	ctx.JSON(iris.Map{
+		"handler": ctx.HandlerName(),
+		"params":  ctx.Params().Store,
+	})
+}