Prior to this commit, the `ng` was exposed in global namespace, which turned out to be problematic when minifying code with Closure, since it sometimes clobber our `ng` global. This commit aligns Ivy debugging tools behavior with existing logic in "platform-browser" package (packages/platform-browser/src/dom/util.ts#L31) by avoiding `ng` in global namespace when Closure Compiler is used.
PR Close#33010
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