message: fix angular test issue properly:
  extending from the right tsconfig base file
diff: {
  - "extends": "../tsconfig.json",
  + "extends": "../tsconfig.base.json",
  "compilerOptions": {
  "outDir": "../out-tsc/spec",
  "types": [
  ],
  "experimentalDecorators": true,
  "allowJs": true,
  - "target": "es5",
  - "module": "ESNext",
  - "moduleResolution": "node"
  + "target": "es5"
  },
  "files": [
  "test.ts",
  