misc: workaround node esm segfault

Author: patrickhulce

package.json

@@ -33,7 +33,8 @@
     "smoke": "node lighthouse-cli/test/smokehouse/frontends/smokehouse-bin.js",
     "debug": "node --inspect-brk ./lighthouse-cli/index.js",
     "start": "yarn build-report --only-standalone && node ./lighthouse-cli/index.js",
-    "jest": "node --experimental-vm-modules ./node_modules/jest/bin/jest.js",
+    "jest": "node ./node_modules/jest/bin/jest.js",
+    "jest-esm": "node --experimental-vm-modules ./node_modules/jest/bin/jest.js",
     "test": "yarn diff:sample-json && yarn lint --quiet && yarn unit && yarn type-check",
     "test-bundle": "yarn smoke --runner bundle -j=1 --retries=2 --invert-match forms",
     "test-clients": "yarn jest \"$PWD/clients/\"",
@@ -43,13 +44,14 @@
     "test-legacy-javascript": "bash lighthouse-core/scripts/test-legacy-javascript.sh",
     "test-docs": "yarn --cwd docs/recipes/auth && yarn jest docs/recipes/integration-test && yarn --cwd docs/recipes/custom-gatherer-puppeteer test",
     "test-proto": "yarn compile-proto && yarn build-proto-roundtrip",
-    "unit-core": "yarn jest \"lighthouse-core\"",
+    "unit-core": "yarn jest \"lighthouse-core\" --testPathIgnorePatterns=page-functions",
+    "unit-core-esm": "yarn jest-esm \"page-functions\"",
     "unit-cli": "yarn jest \"lighthouse-cli/\"",
-    "unit-report": "yarn jest \"report/\"",
+    "unit-report": "yarn jest-esm \"report/\"",
     "unit-treemap": "jest \"lighthouse-treemap/.*-test.js\"",
     "unit-viewer": "jest \"lighthouse-viewer/.*-test.js\"",
-    "unit": "yarn unit-core && yarn unit-cli && yarn unit-report && yarn unit-viewer && yarn unit-treemap",
-    "unit:ci": "NODE_OPTIONS=--max-old-space-size=8192 npm run unit-core -- --ci && npm run unit-cli -- --ci && npm run unit-report -- --ci && npm run unit-viewer -- --ci && npm run unit-treemap -- --ci",
+    "unit": "yarn unit-core && yarn unit-core-esm && yarn unit-cli && yarn unit-report && yarn unit-viewer && yarn unit-treemap",
+    "unit:ci": "NODE_OPTIONS=--max-old-space-size=8192 npm run unit-core -- --ci && npm run unit-core-esm -- --ci && npm run unit-cli -- --ci && npm run unit-report -- --ci && npm run unit-viewer -- --ci && npm run unit-treemap -- --ci",
     "core-unit": "yarn unit-core",
     "cli-unit": "yarn unit-cli",
     "viewer-unit": "yarn unit-viewer",