7: Convert AST nodes to frozen dataclasses (70% faster decode, 40% faster parsing)#256

Cito merged 8 commits intographql-python:maingraphql-python/graphql-core:mainfrom

corydolphin:convert-ast-to-dataclassescorydolphin/graphql-core:convert-ast-to-dataclassesCopy head branch name to clipboard