Test of line directives in caller and caller.
Neither should have any effect on inlining.

-- go.mod --
module testdata
go 1.12

-- a/a.go --
package a

import "testdata/b"

func A() {
//line b2.go:3:3
	b.F() //@ inline(re"F", result)
}

-- b/b.go --
package b

//line b2.go:1:1
func F() { println("hi") }

-- b/b2.go --
package b

func NotWhatYouWereLookingFor() {}

-- result --
package a

func A() {
//line b2.go:3:3
	println("hi") //@ inline(re"F", result)
}