Method name duplicate checking checks outside of type's scope

[kengorab]

See the following code:

// example.abra

import foo from "process"

type F {
  func foo(self) {}
}

This should be perfectly acceptable but produces the error:

Error at <path>/example.abra:<location>
Duplicate name 'foo'
  |    func foo(self) {}
            ^
This name is also declared at (1:8)
  |  import foo from "process"
            ^