code: func Augment(goroutines []*Goroutine) {
  	c := &cache{}
  	for _, g := range goroutines {
  		c.augmentGoroutine(g)
  	}
  }
docs: // Augment processes source files to improve calls to be more descriptive.
  //
  // It modifies goroutines in place. It requires calling ParseDump() with
  // guesspaths set to true to work properly.