Workaround microsoft/TypeScript#38347

Author: CXuesong

packages/@jscorlib-repo/linters/package.json

@@ -13,6 +13,9 @@
     ".": {
       "import": "./src/index.js",
       "types": "./src/index.d.js"
+    },
+    "./type-shims": {
+      "types": "./src/type-shims.d.ts"
     }
   },
   "bin": {

packages/@jscorlib-repo/linters/src/type-shims.d.ts

@@ -0,0 +1,12 @@
+export { };
+
+declare global {
+  // This is to make "@typescript-eslint/no-base-to-string" rule work properly.
+  // https://github.com/microsoft/TypeScript/issues/38347
+  interface Boolean {
+    toString(): string;
+  }
+  interface Error {
+    toString(): string;
+  }
+}

packages/jscorlib/src/tsconfig.json

@@ -17,6 +17,9 @@
       "DOM.Iterable",
       "ESNext"
     ],
+    "types": [
+      "@jscorlib-repo/linters/type-shims",
+    ],
     "sourceMap": true,
     "declaration": true,
     "declarationMap": true,