fdd465e540
Attempt to use the helper functions to minimize the number of places that would need updating should the binary file (the dill file) layout change. The changed code (in FieldHelper) makes assumptions about the layout of the FunctionNode. Instead use FunctionNodeHelper to get the wanted data. Also replaced an unconditional read-and-go-back with the usage of AlternativeReadingScope. BUG= R=sivachandra@google.com Review-Url: https://codereview.chromium.org/2991233002 .