Update handling for ENOENT from GSSP methods

[ijjk]

As discussed this adds handling for ENOENT being thrown from getServerSideProps to make sure we don't trigger the legacy 404 rendering

[ijjk]

Stats from current PR

Default Server Mode

General Overall increase ⚠️

	zeit/next.js canary	ijjk/next.js handle/gssp-enoent	Change
buildDuration	10.7s	10.7s	⚠️ +24ms
nodeModulesSize	52.8 MB	52.8 MB	⚠️ +1.41 kB

Client Bundles (main, webpack, commons)

	zeit/next.js canary	ijjk/next.js handle/gssp-enoent	Change
main-HASH.js gzip	6.24 kB	6.24 kB	✓
webpack-HASH.js gzip	746 B	746 B	✓
de003c3a9d30..c6c1.js gzip	10.1 kB	10.1 kB	✓
framework.HASH.js gzip	39.1 kB	39.1 kB	✓
Overall change	56.2 kB	56.2 kB	✓

Client Bundles (main, webpack, commons) Modern

	zeit/next.js canary	ijjk/next.js handle/gssp-enoent	Change
main-HASH.module.js gzip	4.78 kB	4.78 kB	✓
webpack-HASH..dule.js gzip	746 B	746 B	✓
de003c3a9d30..dule.js gzip	6.71 kB	6.71 kB	✓
framework.HA..dule.js gzip	39.1 kB	39.1 kB	✓
Overall change	51.4 kB	51.4 kB	✓

Legacy Client Bundles (polyfills)

	zeit/next.js canary	ijjk/next.js handle/gssp-enoent	Change
polyfills-HASH.js gzip	26.3 kB	26.3 kB	✓
Overall change	26.3 kB	26.3 kB	✓

Client Pages

	zeit/next.js canary	ijjk/next.js handle/gssp-enoent	Change
_app.js gzip	1.24 kB	1.24 kB	✓
_error.js gzip	3.15 kB	3.15 kB	✓
hooks.js gzip	664 B	664 B	✓
index.js gzip	222 B	222 B	✓
link.js gzip	2.03 kB	2.03 kB	✓
routerDirect.js gzip	279 B	279 B	✓
withRouter.js gzip	278 B	278 B	✓
Overall change	7.86 kB	7.86 kB	✓

Client Pages Modern

	zeit/next.js canary	ijjk/next.js handle/gssp-enoent	Change
_app.module.js gzip	594 B	594 B	✓
_error.module.js gzip	2.08 kB	2.08 kB	✓
hooks.module.js gzip	370 B	370 B	✓
index.module.js gzip	212 B	212 B	✓
link.module.js gzip	1.48 kB	1.48 kB	✓
routerDirect..dule.js gzip	271 B	271 B	✓
withRouter.m..dule.js gzip	270 B	270 B	✓
Overall change	5.28 kB	5.28 kB	✓

Client Build Manifests

	zeit/next.js canary	ijjk/next.js handle/gssp-enoent	Change
_buildManifest.js gzip	61 B	61 B	✓
_buildManife..dule.js gzip	61 B	61 B	✓
Overall change	122 B	122 B	✓

Rendered Page Sizes

	zeit/next.js canary	ijjk/next.js handle/gssp-enoent	Change
index.html gzip	919 B	919 B	✓
link.html gzip	927 B	927 B	✓
withRouter.html gzip	916 B	916 B	✓
Overall change	2.76 kB	2.76 kB	✓

---

Serverless Mode (Increase detected ⚠️)

General Overall increase ⚠️

	zeit/next.js canary	ijjk/next.js handle/gssp-enoent	Change
buildDuration	11.2s	11.3s	⚠️ +85ms
nodeModulesSize	52.8 MB	52.8 MB	⚠️ +1.41 kB

Client Bundles (main, webpack, commons)

	zeit/next.js canary	ijjk/next.js handle/gssp-enoent	Change
main-HASH.js gzip	6.24 kB	6.24 kB	✓
webpack-HASH.js gzip	746 B	746 B	✓
de003c3a9d30..c6c1.js gzip	10.1 kB	10.1 kB	✓
framework.HASH.js gzip	39.1 kB	39.1 kB	✓
Overall change	56.2 kB	56.2 kB	✓

Client Bundles (main, webpack, commons) Modern

	zeit/next.js canary	ijjk/next.js handle/gssp-enoent	Change
main-HASH.module.js gzip	4.78 kB	4.78 kB	✓
webpack-HASH..dule.js gzip	746 B	746 B	✓
de003c3a9d30..dule.js gzip	6.71 kB	6.71 kB	✓
framework.HA..dule.js gzip	39.1 kB	39.1 kB	✓
Overall change	51.4 kB	51.4 kB	✓

Legacy Client Bundles (polyfills)

	zeit/next.js canary	ijjk/next.js handle/gssp-enoent	Change
polyfills-HASH.js gzip	26.3 kB	26.3 kB	✓
Overall change	26.3 kB	26.3 kB	✓

Client Pages

	zeit/next.js canary	ijjk/next.js handle/gssp-enoent	Change
_app.js gzip	1.24 kB	1.24 kB	✓
_error.js gzip	3.15 kB	3.15 kB	✓
hooks.js gzip	664 B	664 B	✓
index.js gzip	222 B	222 B	✓
link.js gzip	2.03 kB	2.03 kB	✓
routerDirect.js gzip	279 B	279 B	✓
withRouter.js gzip	278 B	278 B	✓
Overall change	7.86 kB	7.86 kB	✓

Client Pages Modern

	zeit/next.js canary	ijjk/next.js handle/gssp-enoent	Change
_app.module.js gzip	594 B	594 B	✓
_error.module.js gzip	2.08 kB	2.08 kB	✓
hooks.module.js gzip	370 B	370 B	✓
index.module.js gzip	212 B	212 B	✓
link.module.js gzip	1.48 kB	1.48 kB	✓
routerDirect..dule.js gzip	271 B	271 B	✓
withRouter.m..dule.js gzip	270 B	270 B	✓
Overall change	5.28 kB	5.28 kB	✓

Client Build Manifests

	zeit/next.js canary	ijjk/next.js handle/gssp-enoent	Change
_buildManifest.js gzip	61 B	61 B	✓
_buildManife..dule.js gzip	61 B	61 B	✓
Overall change	122 B	122 B	✓

Serverless bundles Overall increase ⚠️

	zeit/next.js canary	ijjk/next.js handle/gssp-enoent	Change
_error.js gzip	293 kB	294 kB	⚠️ +589 B
404.html gzip	1.32 kB	1.32 kB	✓
hooks.html gzip	960 B	960 B	✓
index.js gzip	293 kB	293 kB	-18 B
link.js gzip	301 kB	301 kB	-254 B
routerDirect.js gzip	300 kB	300 kB	⚠️ +31 B
withRouter.js gzip	300 kB	300 kB	⚠️ +246 B
Overall change	1.49 MB	1.49 MB	⚠️ +594 B