golang bootstrap_true 代码
文件路径：/src/cmd/compile/internal/base/bootstrap_true.go
/ Copyright 2021 The Go Authors. All rights reserved.
/ Use of this source code is governed by a BSD-style
/ license that can be found in the LICENSE file.
/go:build compiler_bootstrap
/ +build compiler_bootstrap
package base
/ CompilerBootstrap reports whether the current compiler binary was
/ built with -tags=compiler_bootstrap.
const CompilerBootstrap = true