Some method names are recognized as anonymous, how can i get the correct method name？

[asfrank]

insertFunctionCounter in visitor.js passes name(path.node.id ? path.node.id.name : path.node.name) as the name to this.cov.newFunction. However, when name is null, the result fnMap contains 'anonymous_' in their names, how can i get the correct name without 'anonymous_'?

name = name || '(anonymous_' + f + ')'; ---newFunction in source-coverage.js