fix some labels for middleware stuff

[sokra]

• show (client only) for _middleware files
• show f symbol for _middleware files in summary tree
• only show legend for symbols used
  

[ijjk]

Stats from current PR

Default Build (Decrease detected ✓)

General Overall increase ⚠️

	vercel/next.js canary	vercel/next.js bugfix/middleware-labels	Change
buildDuration	16.7s	16.8s	⚠️ +71ms
buildDurationCached	3.4s	3.4s	-24ms
nodeModulesSize	196 MB	196 MB	⚠️ +1.13 kB

Page Load Tests Overall decrease ⚠️

	vercel/next.js canary	vercel/next.js bugfix/middleware-labels	Change
/ failed reqs	0	0	✓
/ total time (seconds)	2.801	2.825	⚠️ +0.02
/ avg req/sec	892.42	885.1	⚠️ -7.32
/error-in-render failed reqs	0	0	✓
/error-in-render total time (seconds)	1.325	1.377	⚠️ +0.05
/error-in-render avg req/sec	1886.55	1815.58	⚠️ -70.97

Client Bundles (main, webpack, commons)

	vercel/next.js canary	vercel/next.js bugfix/middleware-labels	Change
450.HASH.js gzip	179 B	179 B	✓
framework-HASH.js gzip	42.2 kB	42.2 kB	✓
main-HASH.js gzip	27.7 kB	27.7 kB	✓
webpack-HASH.js gzip	1.45 kB	1.45 kB	✓
Overall change	71.5 kB	71.5 kB	✓

Legacy Client Bundles (polyfills)

	vercel/next.js canary	vercel/next.js bugfix/middleware-labels	Change
polyfills-a4..dd70.js gzip	31 kB	31 kB	✓
Overall change	31 kB	31 kB	✓

Client Pages

	vercel/next.js canary	vercel/next.js bugfix/middleware-labels	Change
_app-HASH.js gzip	1.23 kB	1.23 kB	✓
_error-HASH.js gzip	194 B	194 B	✓
amp-HASH.js gzip	312 B	312 B	✓
css-HASH.js gzip	327 B	327 B	✓
dynamic-HASH.js gzip	2.38 kB	2.38 kB	✓
head-HASH.js gzip	350 B	350 B	✓
hooks-HASH.js gzip	635 B	635 B	✓
image-HASH.js gzip	4.44 kB	4.44 kB	✓
index-HASH.js gzip	263 B	263 B	✓
link-HASH.js gzip	1.87 kB	1.87 kB	✓
routerDirect..HASH.js gzip	321 B	321 B	✓
script-HASH.js gzip	383 B	383 B	✓
withRouter-HASH.js gzip	318 B	318 B	✓
9a34b27eb3f9..27d.css gzip	125 B	125 B	✓
Overall change	13.2 kB	13.2 kB	✓

Client Build Manifests

	vercel/next.js canary	vercel/next.js bugfix/middleware-labels	Change
_buildManifest.js gzip	459 B	459 B	✓
Overall change	459 B	459 B	✓

Rendered Page Sizes

	vercel/next.js canary	vercel/next.js bugfix/middleware-labels	Change
index.html gzip	535 B	535 B	✓
link.html gzip	547 B	547 B	✓
withRouter.html gzip	528 B	528 B	✓
Overall change	1.61 kB	1.61 kB	✓

---

Default Build with SWC (Increase detected ⚠️)

General Overall increase ⚠️

	vercel/next.js canary	vercel/next.js bugfix/middleware-labels	Change
buildDuration	14.3s	14.3s	⚠️ +22ms
buildDurationCached	3.4s	3.5s	⚠️ +36ms
nodeModulesSize	196 MB	196 MB	⚠️ +1.13 kB

Page Load Tests Overall increase ✓

	vercel/next.js canary	vercel/next.js bugfix/middleware-labels	Change
/ failed reqs	0	0	✓
/ total time (seconds)	2.815	2.749	-0.07
/ avg req/sec	888.18	909.54	+21.36
/error-in-render failed reqs	0	0	✓
/error-in-render total time (seconds)	1.341	1.3	-0.04
/error-in-render avg req/sec	1863.83	1923.77	+59.94

Client Bundles (main, webpack, commons)

	vercel/next.js canary	vercel/next.js bugfix/middleware-labels	Change
450.HASH.js gzip	179 B	179 B	✓
framework-HASH.js gzip	42.2 kB	42.2 kB	✓
main-HASH.js gzip	27.8 kB	27.8 kB	✓
webpack-HASH.js gzip	1.43 kB	1.43 kB	✓
Overall change	71.6 kB	71.6 kB	✓

Legacy Client Bundles (polyfills)

	vercel/next.js canary	vercel/next.js bugfix/middleware-labels	Change
polyfills-a4..dd70.js gzip	31 kB	31 kB	✓
Overall change	31 kB	31 kB	✓

Client Pages

	vercel/next.js canary	vercel/next.js bugfix/middleware-labels	Change
_app-HASH.js gzip	1.22 kB	1.22 kB	✓
_error-HASH.js gzip	180 B	180 B	✓
amp-HASH.js gzip	305 B	305 B	✓
css-HASH.js gzip	321 B	321 B	✓
dynamic-HASH.js gzip	2.38 kB	2.38 kB	✓
head-HASH.js gzip	342 B	342 B	✓
hooks-HASH.js gzip	621 B	621 B	✓
image-HASH.js gzip	4.46 kB	4.46 kB	✓
index-HASH.js gzip	256 B	256 B	✓
link-HASH.js gzip	1.9 kB	1.9 kB	✓
routerDirect..HASH.js gzip	314 B	314 B	✓
script-HASH.js gzip	375 B	375 B	✓
withRouter-HASH.js gzip	309 B	309 B	✓
9a34b27eb3f9..27d.css gzip	125 B	125 B	✓
Overall change	13.1 kB	13.1 kB	✓

Client Build Manifests

	vercel/next.js canary	vercel/next.js bugfix/middleware-labels	Change
_buildManifest.js gzip	459 B	459 B	✓
Overall change	459 B	459 B	✓

Rendered Page Sizes

	vercel/next.js canary	vercel/next.js bugfix/middleware-labels	Change
index.html gzip	533 B	533 B	✓
link.html gzip	546 B	546 B	✓
withRouter.html gzip	527 B	527 B	✓
Overall change	1.61 kB	1.61 kB	✓

Commit: 807d82f

[ijjk]

Failing test suites

Commit: 807d82f

test/e2e/basepath.test.ts

• basePath > should use urls with basepath in router events for hash changes
• basePath > should use urls with basepath in router events for failed route change

Expand output

● basePath › should use urls with basepath in router events for hash changes

expect(received).toEqual(expected) // deep equality

- Expected  -  0
+ Received  + 21

@@ -1,7 +1,28 @@
  Array [
    Array [
+     "routeChangeStart",
+     "/docs/hello",
+     Object {
+       "shallow": true,
+     },
+   ],
+   Array [
+     "beforeHistoryChange",
+     "/docs/hello",
+     Object {
+       "shallow": true,
+     },
+   ],
+   Array [
+     "routeChangeComplete",
+     "/docs/hello",
+     Object {
+       "shallow": true,
+     },
+   ],
+   Array [
      "hashChangeStart",
      "/docs/hello#some-hash",
      Object {
        "shallow": false,
      },

  713 |
  714 |         const eventLog = await browser.eval('window._getEventLog()')
> 715 |         expect(eventLog).toEqual([
      |                          ^
  716 |           [
  717 |             'hashChangeStart',
  718 |             `${basePath}/hello#some-hash`,

  at Object.<anonymous> (e2e/basepath.test.ts:715:26)

● basePath › should use urls with basepath in router events for failed route change

expect(received).toEqual(expected) // deep equality

- Expected  -  0
+ Received  + 21

@@ -1,8 +1,29 @@
  Array [
    Array [
      "routeChangeStart",
+     "/docs/hello",
+     Object {
+       "shallow": true,
+     },
+   ],
+   Array [
+     "beforeHistoryChange",
+     "/docs/hello",
+     Object {
+       "shallow": true,
+     },
+   ],
+   Array [
+     "routeChangeComplete",
+     "/docs/hello",
+     Object {
+       "shallow": true,
+     },
+   ],
+   Array [
+     "routeChangeStart",
      "/docs/error-route",
      Object {
        "shallow": false,
      },
    ],

  769 |
  770 |         const eventLog = await browser.eval('window._getEventLog()')
> 771 |         expect(eventLog).toEqual([
      |                          ^
  772 |           ['routeChangeStart', `${basePath}/error-route`, { shallow: false }],
  773 |           [
  774 |             'routeChangeError',

  at Object.<anonymous> (e2e/basepath.test.ts:771:26)