fix(hydration): improve comment node hydration

[edison1105]

close #9531
The root cause is that the node is a <!--[-->.

<template>
  <div><span>foo</span><!--[--></div>
</template>

see
BTW, support hydrate left square bracket comment node

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Size Report

Bundles

File	Size	Gzip	Brotli
runtime-dom.global.prod.js	86.4 kB (-7 B)	32.9 kB (+5 B)	29.7 kB (-9 B)
vue.global.prod.js	132 kB (-7 B)	49.6 kB (+7 B)	44.6 kB (+47 B)

Usages

Name	Size	Gzip	Brotli
createApp	47.9 kB	18.9 kB	17.2 kB
createSSRApp	51.2 kB (-7 B)	20.2 kB (+7 B)	18.4 kB (+19 B)
defineCustomElement	50.3 kB	19.7 kB	17.9 kB
overall	61.3 kB	23.7 kB	21.6 kB

[yyx990803]

We haven't seen a real reproduction from the original reports, I'm not sure if this is caused by a real left bracket comment since that would be very unlikely in user code.

[yyx990803]

See #9531 (comment)

I think the case you raised is still valid (although really an edge case)