message: Rename Selection, Field and FragmentSpread with GraphQL prefix
diff: @@ -233,7 +233,7 @@ export function structDeclarationForSelectionSet(
  }
  generator.printNewlineIfNeeded();
  - generator.printOnNewline('public static let selections: [Selection] = ');
  + generator.printOnNewline('public static let selections: [GraphQLSelection] = ');
  selectionSetInitialization(generator, fields, inlineFragments);
  generator.printNewlineIfNeeded();
  @@ -525,7 +525,7 @@ export function selectionSetInitialization(generator, fields, inlineFragments) {
  const { responseName, fieldName, args, type } = field;
  const structName = structNameForPropertyName(responseName);
  - generator.printOnNewline(`Field(`);
  + generator.printOnNewline(`GraphQLField(`);
  generator.print(join([
  `"${fieldName}"`,
  responseName != fieldName ? `alias: "${responseName}"` : null,
  @@ -537,7 +537,7 @@ export function selectionSetInitialization(generator, fields, inlineFragments) {
  inlineFragments && inlineFragments.forEach(InlineFragment => {
  const structName = structNameForInlineFragment(InlineFragment);
  - generator.printOnNewline(`FragmentSpread(${structName}.self),`);
  + generator.printOnNewline(`GraphQLFragmentSpread(${structName}.self),`);
  });
  });
  generator.printOnNewline(']');
  