has = true
			return false
		}
		return true
	})
	return has
}

// findImportGroupStarts finds the start positions of each sequence of import
// specs that are not separated by a blank line.
func findImportGroupStarts(imps []*ast.ImportSpec) []token.Pos {
	startImps := findImportGroupStarts1(imps)
	groupStarts := make([]token.Pos, len(startImps))