chore: clean out/ before every test run to prevent stale builds

Both pretest scripts now rm -rf out/ before compiling. Also removes
redundant double-compile and double-lint from root pretest.

Author: JohannesHoppe

package.json

@@ -296,7 +296,8 @@
     "package": "npm run check-types && npm run lint && node esbuild.js --production",
     "compile-tests": "tsc -p . --outDir out",
     "watch-tests": "tsc -p . -w --outDir out",
-    "pretest": "npm run compile-tests && npm run compile && npm run lint",
+    "clean": "rm -rf out",
+    "pretest": "npm run clean && npm run compile-tests && npm run lint",
     "check-types": "tsc --noEmit",
     "lint": "eslint \"src/**/*.ts\"",
     "test": "vscode-test",

tests/comparison/package.json

@@ -10,7 +10,8 @@
   "scripts": {
     "compile-tests": "tsc -p . --outDir out --noEmitOnError false 2>&1 | grep -v 'old-typescript-hero/src/ioc.ts' || true",
     "watch-tests": "tsc -p . -w --outDir out",
-    "pretest": "npm run compile-tests",
+    "clean": "rm -rf out",
+    "pretest": "npm run clean && npm run compile-tests",
     "test": "vscode-test"
   },
   "devDependencies": {