fix(core): correctly polyfill tslib (#9894)

Co-authored-by: Nathan Walker <walkerrunpdx@gmail.com>

packages/core/globals/index.ts

@@ -1,4 +1,4 @@
-import * as tslibType from 'tslib';
+import type * as tslibType from 'tslib';
 const tslib: typeof tslibType = require('tslib');
 import { Observable } from '../data/observable';
 import { trace as profilingTrace, time, uptime, level as profilingLevel } from '../profiling';
@@ -132,7 +132,7 @@ export function initGlobal() {
 		// Bind the tslib helpers to global scope.
 		// This is needed when we don't use importHelpers, which
 		// breaks extending native-classes
-		for (const fnName of Object.keys(tslib)) {
+		for (const fnName of Object.getOwnPropertyNames(tslib)) {
 			if (typeof tslib[fnName] !== 'function') {
 				continue;
 			}

packages/core/package.json

@@ -48,7 +48,7 @@
     "acorn": "^8.7.0",
     "css-tree": "^1.1.2",
     "reduce-css-calc": "^2.1.7",
-    "tslib": "~2.0.0"
+    "tslib": "^2.0.0"
   },
   "nativescript": {
     "platforms": {