string-format rule not working on method called when obj is inside an struct.

[rmarku]

Describe the bug The string-format rule search only for function calls and methods, but if the object is inside a structure, the method call is not found by the rule. This is a typical pattern when we want a generic Logger interface and different implementations. In this case Logger is a port and MyLogger would be an adapter from a project with hexagonal architecture. This implementation is injected in main to a service.

To Reproduce Steps to reproduce the behavior:

1. Create go file with the following code:

   
   package main

import "fmt"

type Logger interface { Error(msg string, keysAndValues ...any) } type MyLogger struct { }

func (m *MyLogger) Error(msg string, _ ...any) { fmt.Println(msg) }

type Service struct { logger Logger }

func main() { s := Service{ logger: &MyLogger{}, } s.logger.Error("Test") }

2. I run it with the following flags & configuration file:

```shell
revive main.go

config

[rule.string-format]
  arguments = [
    ["logger.Error", "/^([^A-Z]|$)/",  "must not start with a capital letter"]]

Expected behavior I spect it to fail with

./tests/main.go:23:17: must not start with a capital letter

as the logger.Error call start with a capital letter

Desktop (please complete the following information):

• OS: Gentoo
• Version of Go: 1.20

Additional context MR is created with working solution (I don't know if the best)