message: add deprecation info to hint
diff: @@ -122,7 +122,9 @@ export default function getHintsAtPosition(schema, sourceText, cursor, token) {
  return hintList(cursor, token, values.map(value => ({
  text: value.name,
  type: namedInputType,
  - description: value.description
  + description: value.description,
  + isDeprecated: value.isDeprecated,
  + deprecationReason: value.deprecationReason
  })));
  } else if (namedInputType === GraphQLBoolean) {
  return hintList(cursor, token, [
  