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Rules run a lot slower now

See original GitHub issue

Hi, I’ve noticed that recently this plugin has gotten a lot slower. I use many eslint rules, and still this plugin is over 50% of the runtime. It looks like it spends the majority of its time in parseJestFnCall.

Here is a sampling of the output from TIMING=all

jest/consistent-test-it                                    | 12047.834 |     5.5%
jest/no-disabled-tests                                     |  8272.639 |     3.8%
jest/no-duplicate-hooks                                    |  8047.621 |     3.7%
jest/no-identical-title                                    |  8024.471 |     3.7%
jest/require-top-level-describe                            |  7910.195 |     3.6%
jest/no-alias-methods                                      |  4233.073 |     1.9%
jest/no-export                                             |  4037.647 |     1.9%
jest/valid-expect                                          |  4012.385 |     1.8%
jest/valid-title                                           |  4009.165 |     1.8%
jest/prefer-hooks-on-top                                   |  3998.323 |     1.8%
jest/prefer-comparison-matcher                             |  3997.734 |     1.8%
jest/prefer-to-contain                                     |  3995.129 |     1.8%
jest/prefer-todo                                           |  3993.870 |     1.8%
jest/no-large-snapshots                                    |  3992.662 |     1.8%
jest/prefer-equality-matcher                               |  3988.052 |     1.8%
jest/prefer-strict-equal                                   |  3982.349 |     1.8%
jest/no-interpolation-in-snapshots                         |  3981.740 |     1.8%
jest/prefer-expect-resolves                                |  3981.178 |     1.8%
jest/no-focused-tests                                      |  3972.438 |     1.8%
jest/prefer-to-have-length                                 |  3968.205 |     1.8%
jest/require-to-throw-message                              |  3964.580 |     1.8%
jest/no-test-prefixes                                      |  3957.872 |     1.8%
jest/valid-describe-callback                               |  3945.417 |     1.8%

Thanks!