Eagerly load swc bindings for wasm fallback for jest

[ijjk]

Follow-up to #36612 this updates to eagerly load the swc bindings unless babel is being used so that we don't wait for the transform calls to initialize swc. Eagerly loading in jest also allows us to fallback to the wasm bindings when previously we couldn't since they needed to wait for the import.

[ijjk]

Stats from current PR

Default Build

General Overall increase ⚠️

	vercel/next.js canary	ijjk/next.js update/eagerly-load-bindings	Change
buildDuration	18.7s	18.9s	⚠️ +241ms
buildDurationCached	7.4s	7.2s	-243ms
nodeModulesSize	475 MB	475 MB	⚠️ +1.92 kB

Page Load Tests Overall increase ✓

	vercel/next.js canary	ijjk/next.js update/eagerly-load-bindings	Change
/ failed reqs	0	0	✓
/ total time (seconds)	5.051	5.049	0
/ avg req/sec	494.99	495.13	+0.14
/error-in-render failed reqs	0	0	✓
/error-in-render total time (seconds)	2.042	2.041	0
/error-in-render avg req/sec	1224.37	1225.15	+0.78

Client Bundles (main, webpack)

	vercel/next.js canary	ijjk/next.js update/eagerly-load-bindings	Change
925.HASH.js gzip	179 B	179 B	✓
framework-HASH.js gzip	42 kB	42 kB	✓
main-HASH.js gzip	28.8 kB	28.8 kB	✓
webpack-HASH.js gzip	1.44 kB	1.44 kB	✓
Overall change	72.5 kB	72.5 kB	✓

Legacy Client Bundles (polyfills)

	vercel/next.js canary	ijjk/next.js update/eagerly-load-bindings	Change
polyfills-HASH.js gzip	31 kB	31 kB	✓
Overall change	31 kB	31 kB	✓

Client Pages

	vercel/next.js canary	ijjk/next.js update/eagerly-load-bindings	Change
_app-HASH.js gzip	1.36 kB	1.36 kB	✓
_error-HASH.js gzip	193 B	193 B	✓
amp-HASH.js gzip	308 B	308 B	✓
css-HASH.js gzip	327 B	327 B	✓
dynamic-HASH.js gzip	2.69 kB	2.69 kB	✓
head-HASH.js gzip	359 B	359 B	✓
hooks-HASH.js gzip	920 B	920 B	✓
image-HASH.js gzip	5.7 kB	5.7 kB	✓
index-HASH.js gzip	263 B	263 B	✓
link-HASH.js gzip	2.64 kB	2.64 kB	✓
routerDirect..HASH.js gzip	320 B	320 B	✓
script-HASH.js gzip	391 B	391 B	✓
withRouter-HASH.js gzip	318 B	318 B	✓
85e02e95b279..7e3.css gzip	107 B	107 B	✓
Overall change	15.9 kB	15.9 kB	✓

Client Build Manifests

	vercel/next.js canary	ijjk/next.js update/eagerly-load-bindings	Change
_buildManifest.js gzip	459 B	459 B	✓
Overall change	459 B	459 B	✓

Rendered Page Sizes

	vercel/next.js canary	ijjk/next.js update/eagerly-load-bindings	Change
index.html gzip	532 B	532 B	✓
link.html gzip	545 B	545 B	✓
withRouter.html gzip	527 B	527 B	✓
Overall change	1.6 kB	1.6 kB	✓

---

Default Build with SWC (Decrease detected ✓)

General Overall increase ⚠️

	vercel/next.js canary	ijjk/next.js update/eagerly-load-bindings	Change
buildDuration	21.3s	21.5s	⚠️ +264ms
buildDurationCached	7.2s	7.2s	-21ms
nodeModulesSize	475 MB	475 MB	⚠️ +1.92 kB

Page Load Tests Overall decrease ⚠️

	vercel/next.js canary	ijjk/next.js update/eagerly-load-bindings	Change
/ failed reqs	0	0	✓
/ total time (seconds)	5.122	5.162	⚠️ +0.04
/ avg req/sec	488.1	484.34	⚠️ -3.76
/error-in-render failed reqs	0	0	✓
/error-in-render total time (seconds)	1.969	2.053	⚠️ +0.08
/error-in-render avg req/sec	1269.8	1217.79	⚠️ -52.01

Client Bundles (main, webpack)

	vercel/next.js canary	ijjk/next.js update/eagerly-load-bindings	Change
925.HASH.js gzip	178 B	178 B	✓
framework-HASH.js gzip	42.2 kB	42.2 kB	✓
main-HASH.js gzip	29.2 kB	29.2 kB	✓
webpack-HASH.js gzip	1.45 kB	1.45 kB	✓
Overall change	73.1 kB	73.1 kB	✓

Legacy Client Bundles (polyfills)

	vercel/next.js canary	ijjk/next.js update/eagerly-load-bindings	Change
polyfills-HASH.js gzip	31 kB	31 kB	✓
Overall change	31 kB	31 kB	✓

Client Pages

	vercel/next.js canary	ijjk/next.js update/eagerly-load-bindings	Change
_app-HASH.js gzip	1.35 kB	1.35 kB	✓
_error-HASH.js gzip	179 B	179 B	✓
amp-HASH.js gzip	312 B	312 B	✓
css-HASH.js gzip	324 B	324 B	✓
dynamic-HASH.js gzip	2.71 kB	2.71 kB	✓
head-HASH.js gzip	357 B	357 B	✓
hooks-HASH.js gzip	921 B	921 B	✓
image-HASH.js gzip	5.79 kB	5.79 kB	✓
index-HASH.js gzip	261 B	261 B	✓
link-HASH.js gzip	2.76 kB	2.76 kB	✓
routerDirect..HASH.js gzip	322 B	322 B	✓
script-HASH.js gzip	392 B	392 B	✓
withRouter-HASH.js gzip	317 B	317 B	✓
85e02e95b279..7e3.css gzip	107 B	107 B	✓
Overall change	16.1 kB	16.1 kB	✓

Client Build Manifests

	vercel/next.js canary	ijjk/next.js update/eagerly-load-bindings	Change
_buildManifest.js gzip	456 B	456 B	✓
Overall change	456 B	456 B	✓

Rendered Page Sizes

	vercel/next.js canary	ijjk/next.js update/eagerly-load-bindings	Change
index.html gzip	530 B	530 B	✓
link.html gzip	544 B	544 B	✓
withRouter.html gzip	527 B	527 B	✓
Overall change	1.6 kB	1.6 kB	✓

Commit: 8d34b3e