chore: commit generated types to the repository (#4826)

Also check them during `npm run lint` and regenerate during `npm run watch`.

.gitignore

@@ -12,7 +12,6 @@ yarn.lock
 /node6
 /src/generated/*
 lib/
-/types/*
 jest-report.json
 drivers/
 /docs/api.json

package.json

@@ -19,13 +19,12 @@
     "tsc-installer": "tsc -p ./src/install/tsconfig.json",
     "doc": "node utils/doclint/cli.js",
     "test-infra": "folio utils/doclint/check_public_api/test/test.js && folio utils/doclint/preprocessor/test.js",
-    "lint": "npm run eslint && npm run tsc && npm run doc && npm run check-deps && npm run generate-channels && npm run test-types && npm run test-infra",
+    "lint": "npm run eslint && npm run tsc && npm run doc && npm run check-deps && npm run generate-channels && node utils/generate_types/ --check-clean && npm run test-types && npm run test-infra",
     "clean": "rimraf lib && rimraf types",
     "prepare": "node install-from-github.js",
-    "build": "node utils/runWebpack.js --mode='development' && tsc -p . && npm run generate-types && npm run generate-api-json",
+    "build": "node utils/runWebpack.js --mode='development' && tsc -p . && npm run generate-api-json",
     "watch": "node utils/watch.js",
-    "test-types": "npm run generate-types && npx -p typescript@3.7.5 tsc -p utils/generate_types/test/tsconfig.json && npm run typecheck-tests",
-    "generate-types": "node utils/generate_types/",
+    "test-types": "node utils/generate_types/ && npx -p typescript@3.7.5 tsc -p utils/generate_types/test/tsconfig.json && npm run typecheck-tests",
     "generate-channels": "node utils/generate_channels.js",
     "generate-api-json": "node utils/doclint/generateApiJson.js > docs/api.json",
     "typecheck-tests": "tsc -p ./test/",