message: Switch `introspectionResult` to the more accurate `introspectionSchema`.
  Ref:
diff: @@ -238,9 +238,9 @@ export async function resolveSchema(
  )
  : referredSchema.clientSide
  ? buildASTSchema(loadAsAST())
  - : await loadSchema(referredSchema, config).then(introspectionResult => {
  - if (!introspectionResult) return;
  - return buildClientSchema({ __schema: introspectionResult });
  + : await loadSchema(referredSchema, config).then(introspectionSchema => {
  + if (!introspectionSchema) return;
  + return buildClientSchema({ __schema: introspectionSchema });
  });
  }
  