fix(runtime-core): pre jobs without an id should run first

[skirtles-code]

If watch() is used outside of a component, the job won't be assigned an id. This leads to it running last, after component rendering:

SFC Playground

This is a regression in 3.2.38, introduced by 78c199d. With 3.2.37 the watcher runs first, as expected.

If someone actually wants a 'global' watcher to run after rendering they can use flush: 'post' instead.

In the early 3.0.0 betas, pre jobs were assigned an id of -1, so the default value of Infinity wasn't used. Once the separate pre queue was introduced the id became irrelevant, so it was removed. However, 3.2.38 moved pre jobs back into the main queue. For watch() calls inside components, this assigns the job an actual id, to ensure they are run just before the component's rendering job. But for watch() calls outside components, no id is assigned and it falls back to Infinity.

My change uses -1 as the default id for pre jobs.

SFC Playground - This PR

[sxzz]

/ecosystem-ci run

[vue-bot]

📝 Ran ecosystem CI: Open

suite	result
nuxt	✅ success
pinia	✅ success
router	✅ success
test-utils	✅ success
vite-plugin-vue	✅ success
vitepress	✅ success
vue-macros	✅ success
vueuse	✅ success

[github-actions]

Size Report

Bundles

File	Size	Gzip	Brotli
runtime-dom.global.prod.js	98.7 kB (-11 B)	37.4 kB (-4 B)	33.7 kB (-15 B)
vue.global.prod.js	156 kB (-11 B)	57.2 kB (-4 B)	50.9 kB (-23 B)

Usages

Name	Size	Gzip	Brotli
createApp	54.2 kB (-11 B)	21 kB (-9 B)	19.2 kB (+51 B)
createSSRApp	58.1 kB (-11 B)	22.6 kB (-7 B)	20.6 kB (-23 B)
defineCustomElement	58.8 kB (-11 B)	22.5 kB (-1 B)	20.5 kB (-5 B)
overall	67.8 kB (-11 B)	26 kB (-5 B)	23.7 kB (+17 B)

[pkg-pr-new]

commit: 3b04b4a

@vue/compiler-core

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@vue/compiler-dom

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@vue/compiler-ssr

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@vue/reactivity

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@vue/runtime-core

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@vue/runtime-dom

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@vue/server-renderer

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vue

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