Reuse cached loading segment data when loading state is re-triggered

[ztanner]

This restores the test that was disabled in #61573 by implementing the behavior differently. Previously we would "partially" expire the prefetch cache and reuse the loading data from the stale prefetch.

Now that we no longer re-use stale prefetch data, this PR instead updates the logic to re-use the existing cache node's loading. Since the PR that this is stacked upon has moved all loading data to be part of the cache node seed data, we can copy over the existing entry when navigating.

Closes NEXT-2558

[ztanner]

• Reuse cached loading segment data when loading state is re-triggered #62347 👈
• Store loading data in CacheNode #62346 : 1 other dependent PR (#63256 )
• Pass whole prefetch entry rather than status property #62345
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Tests Passed

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Stats from current PR

Default Build (Increase detected ⚠️)

General Overall increase ⚠️

	vercel/next.js canary	vercel/next.js 02-21-Expire_loading_state_cache_separately_from_cache_node_data	Change
buildDuration	13.8s	13.9s	N/A
buildDurationCached	8.4s	6.3s	N/A
nodeModulesSize	198 MB	198 MB	⚠️ +16.1 kB
nextStartRea..uration (ms)	430ms	437ms	N/A

Client Bundles (main, webpack) Overall increase ⚠️

	vercel/next.js canary	vercel/next.js 02-21-Expire_loading_state_cache_separately_from_cache_node_data	Change
2453-HASH.js gzip	30.5 kB	30.8 kB	⚠️ +224 B
3304.HASH.js gzip	181 B	181 B	✓
3f784ff6-HASH.js gzip	53.7 kB	53.7 kB	N/A
8299-HASH.js gzip	5.04 kB	5.04 kB	N/A
framework-HASH.js gzip	45.2 kB	45.2 kB	✓
main-app-HASH.js gzip	242 B	241 B	N/A
main-HASH.js gzip	32.2 kB	32.2 kB	N/A
webpack-HASH.js gzip	1.68 kB	1.68 kB	N/A
Overall change	75.9 kB	76.1 kB	⚠️ +224 B

Legacy Client Bundles (polyfills)

	vercel/next.js canary	vercel/next.js 02-21-Expire_loading_state_cache_separately_from_cache_node_data	Change
polyfills-HASH.js gzip	31 kB	31 kB	✓
Overall change	31 kB	31 kB	✓

Client Pages

	vercel/next.js canary	vercel/next.js 02-21-Expire_loading_state_cache_separately_from_cache_node_data	Change
_app-HASH.js gzip	196 B	197 B	N/A
_error-HASH.js gzip	184 B	184 B	✓
amp-HASH.js gzip	505 B	505 B	✓
css-HASH.js gzip	324 B	325 B	N/A
dynamic-HASH.js gzip	2.5 kB	2.5 kB	N/A
edge-ssr-HASH.js gzip	258 B	258 B	✓
head-HASH.js gzip	352 B	352 B	✓
hooks-HASH.js gzip	370 B	371 B	N/A
image-HASH.js gzip	4.21 kB	4.21 kB	✓
index-HASH.js gzip	259 B	259 B	✓
link-HASH.js gzip	2.67 kB	2.67 kB	N/A
routerDirect..HASH.js gzip	314 B	312 B	N/A
script-HASH.js gzip	386 B	386 B	✓
withRouter-HASH.js gzip	309 B	309 B	✓
1afbb74e6ecf..834.css gzip	106 B	106 B	✓
Overall change	6.57 kB	6.57 kB	✓

Client Build Manifests

	vercel/next.js canary	vercel/next.js 02-21-Expire_loading_state_cache_separately_from_cache_node_data	Change
_buildManifest.js gzip	481 B	484 B	N/A
Overall change	0 B	0 B	✓

Rendered Page Sizes

	vercel/next.js canary	vercel/next.js 02-21-Expire_loading_state_cache_separately_from_cache_node_data	Change
index.html gzip	529 B	528 B	N/A
link.html gzip	541 B	542 B	N/A
withRouter.html gzip	524 B	524 B	✓
Overall change	524 B	524 B	✓

Edge SSR bundle Size

	vercel/next.js canary	vercel/next.js 02-21-Expire_loading_state_cache_separately_from_cache_node_data	Change
edge-ssr.js gzip	95.1 kB	95.1 kB	N/A
page.js gzip	3.06 kB	3.07 kB	N/A
Overall change	0 B	0 B	✓

Middleware size

	vercel/next.js canary	vercel/next.js 02-21-Expire_loading_state_cache_separately_from_cache_node_data	Change
middleware-b..fest.js gzip	625 B	624 B	N/A
middleware-r..fest.js gzip	151 B	151 B	✓
middleware.js gzip	25.5 kB	25.5 kB	N/A
edge-runtime..pack.js gzip	839 B	839 B	✓
Overall change	990 B	990 B	✓

Next Runtimes

	vercel/next.js canary	vercel/next.js 02-21-Expire_loading_state_cache_separately_from_cache_node_data	Change
app-page-exp...dev.js gzip	171 kB	171 kB	N/A
app-page-exp..prod.js gzip	96.5 kB	96.5 kB	N/A
app-page-tur..prod.js gzip	98.2 kB	98.2 kB	N/A
app-page-tur..prod.js gzip	92.7 kB	92.7 kB	N/A
app-page.run...dev.js gzip	149 kB	149 kB	N/A
app-page.run..prod.js gzip	91.2 kB	91.2 kB	N/A
app-route-ex...dev.js gzip	21.3 kB	21.3 kB	✓
app-route-ex..prod.js gzip	15 kB	15 kB	✓
app-route-tu..prod.js gzip	15 kB	15 kB	✓
app-route-tu..prod.js gzip	14.8 kB	14.8 kB	✓
app-route.ru...dev.js gzip	20.9 kB	20.9 kB	✓
app-route.ru..prod.js gzip	14.8 kB	14.8 kB	✓
pages-api-tu..prod.js gzip	9.52 kB	9.52 kB	✓
pages-api.ru...dev.js gzip	9.8 kB	9.8 kB	✓
pages-api.ru..prod.js gzip	9.52 kB	9.52 kB	✓
pages-turbo...prod.js gzip	22.3 kB	22.3 kB	✓
pages.runtim...dev.js gzip	22.9 kB	22.9 kB	✓
pages.runtim..prod.js gzip	22.3 kB	22.3 kB	✓
server.runti..prod.js gzip	50.5 kB	50.5 kB	✓
Overall change	249 kB	249 kB	✓

build cache Overall increase ⚠️

	vercel/next.js canary	vercel/next.js 02-21-Expire_loading_state_cache_separately_from_cache_node_data	Change
0.pack gzip	1.56 MB	1.56 MB	N/A
index.pack gzip	105 kB	105 kB	⚠️ +349 B
Overall change	105 kB	105 kB	⚠️ +349 B

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Commit: bb6a4c5