angular__angular/packages/language-service/tsconfig.json

{
  "extends": "../tsconfig-build.json",
  "compilerOptions": {
    "types": ["node"],
    "paths": {
      "@angular/*": ["../*"],
      // compiler-cli specific mapping is present to allow deep importing into the compiler code.
      "@angular/compiler-cli": ["../compiler-cli"],
      "@angular/compiler-cli/*": ["../compiler-cli/*"]
    }
  }
}