angular-cn/modules/@angular/core/tsconfig-esm5.json

{
  "extends": "./tsconfig-build",
  "compilerOptions": {
      "outDir": "../../../dist/esm/core",
      "target": "es5"
  },
  "files": [
    "index.ts",
    "../../../node_modules/zone.js/dist/zone.js.d.ts",
    "../../system.d.ts"
  ]
}