refactor(runtime-core): replace vnode.shapeFlag checks with existed functions

[noootwo]

No description provided.

[github-actions]

Size Report

Bundles

File	Size	Gzip	Brotli
runtime-dom.global.prod.js	100 kB (+15 B)	38 kB (+14 B)	34.2 kB (-2 B)
vue.global.prod.js	158 kB (+15 B)	57.8 kB (+10 B)	51.4 kB (+11 B)

Usages

Name	Size	Gzip	Brotli
createApp (CAPI only)	47.2 kB (+15 B)	18.4 kB (+9 B)	16.8 kB (+11 B)
createApp	55.2 kB (+15 B)	21.4 kB (+9 B)	19.5 kB (+9 B)
createSSRApp	59.3 kB (+15 B)	23.1 kB (+10 B)	21 kB (+7 B)
defineCustomElement	60.1 kB (+15 B)	22.9 kB (+4 B)	20.9 kB (+18 B)
overall	69.1 kB (+15 B)	26.5 kB (+15 B)	24.1 kB (-8 B)

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@vue/compiler-core

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@vue/compiler-dom

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@vue/compiler-ssr

pnpm add https://pkg.pr.new/@vue/compiler-ssr@12406

@vue/compiler-sfc

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@vue/reactivity

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@vue/runtime-core

pnpm add https://pkg.pr.new/@vue/runtime-core@12406

@vue/runtime-dom

pnpm add https://pkg.pr.new/@vue/runtime-dom@12406

@vue/server-renderer

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@vue/shared

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vue

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@vue/compat

pnpm add https://pkg.pr.new/@vue/compat@12406

commit: 3cc3dde

[edison1105]

LGTM