Test of inlining a function that references an
internal package that is not accessible to the caller.
(c -> b -> b/internal/a)
-- go.mod --
module testdata
go 1.12
-- b/internal/a/a.go --
package a
func A() {}
-- b/b.go --
package b
import "testdata/b/internal/a"
func B() { a.A() }
-- c/c.go --
package c
import "testdata/b"
func _() {
b.B() //@ inline(re"B", re`body refers to inaccessible package "testdata/b/internal/a"`)
}