@jimwong/istanbul-reports

基于 istanbul-reports@3.1.6，改动了在生成增量报告时，在报告中标记出变更行

• node.getRelativeName

• context.getSource(filePath)

• context.classForPercent(type, percent)

• context.console.colorize(str, class)

• context.writer

• context.console.write

• context.console.println