fix(config): improve emit skipped error message and ensure outDir always TS_JEST_OUT_DIR (#2357)

Author: ahnpnl

…cases__/allow-js/with-outDir/bar.spec.ts e2e/__cases__/allow-js/bar.spec.tse2e/__cases__/allow-js/with-outDir/bar.spec.ts renamed to e2e/__cases__/allow-js/bar.spec.ts e2e/__cases__/allow-js/with-outDir/bar.spec.ts renamed to e2e/__cases__/allow-js/bar.spec.ts

@@ -2,6 +2,6 @@
   "compilerOptions": {
     "target": "es5",
     "allowJs": true,
-    "outDir": "$$ts-jest$$"
+    "outDir": "./build"
   }
 }