This test verifies the infertypeargs refactoring.

-- flags --
-min_go=go1.18

-- go.mod --
module mod.test/infertypeargs

go 1.18

-- p.go --
package infertypeargs

func app[S interface{ ~[]E }, E interface{}](s S, e E) S {
	return append(s, e)
}

func _() {
	_ = app[[]int]
	_ = app[[]int, int]
	_ = app[[]int]([]int{}, 0) //@codeaction("refactor.rewrite", "app", ")", infer)
	_ = app([]int{}, 0)
}

-- @infer/p.go --
package infertypeargs

func app[S interface{ ~[]E }, E interface{}](s S, e E) S {
	return append(s, e)
}

func _() {
	_ = app[[]int]
	_ = app[[]int, int]
	_ = app([]int{}, 0) //@codeaction("refactor.rewrite", "app", ")", infer)
	_ = app([]int{}, 0)
}