process.sourceMapsEnabled
稳定性: 1 - 实验:改用 
module.getSourceMapsSupport()。¥Stability: 1 - Experimental: Use module.getSourceMapsSupport() instead.
process.sourceMapsEnabled 属性返回是否启用了对堆栈跟踪的 源映射 支持。
¥The process.sourceMapsEnabled property returns whether the
Source Map support for stack traces is enabled.