Structure doesn't show some methods

[zolotov]

For two files in different packages:

package package1

type myType int

package package2

func (s *myType) Hello() {

}

s.Hello is not appeared in structure popup.

For two files from the same package:

package main

type myType int

package main

func (s *myType) Hello() {

}

Hello method will be show only with show package structure checkbox enabled

[dlsniper]

@zolotov actually this example is wrong (see https://play.golang.org/p/iSZnh2nffW):

package main

func (s *string) Hello() { // cannot define new methods on non-local type string

}

Second example looks valid tho.

[zolotov]

thanks, update description

[ignatov]

Relates to #1915