Var("name").Text() prints function/struct body with both braces

[DmitriyMV]

Repro:

package gorules

import "github.com/quasilyte/go-ruleguard/dsl"

func reproCapture(m dsl.Matcher) {
	m.Match(`type $t struct { $*body }`).
		Do(printRepro)
}

func printRepro(context *dsl.DoContext) {
	text := context.Var("body").Text()
	context.SetReport(text)
}