test: move HMR main test to a separate file

[devjiwonchoi]

Note

The "Test new tests for flakes" may fail due to the number of tests in a single hmr.test.ts file.
The follow-up stacks are to resolve the issue.

Why?

Moved to a separate file to run the test in parallel.

[devjiwonchoi]

• test: remove unnecessary conditionals in error recovery tests #73625
• test: replace duplicate test utils to next instance #73624
• test: split hot module reload HMR test into multiple files #73620
• test: split full reload HMR test into multiple files #73619
• test: split error recovery HMR test into multiple files #73617
• test: split basic HMR test into multiple files #73616
• test: move HMR fixtures to a fixtures/ directory #73613
• test: move HMR basic test to a separate file #73612
• test: move HMR main test to a separate file #73611 👈 (View in Graphite)
• test: move HMR Error Recovery test to a separate file #73592
• test: move HMR Full Reload test to a separate file #73591
• test: replace check to retry in hmr.test.ts #73590
• canary

This stack of pull requests is managed by Graphite. Learn more about stacking.

[ijjk]

Stats from current PR

Default Build (Increase detected ⚠️)

General

	vercel/next.js canary	vercel/next.js 12-07-test_move_hmr_main_test_to_a_separate_file	Change
buildDuration	23.1s	20.5s	N/A
buildDurationCached	19.6s	17s	N/A
nodeModulesSize	409 MB	409 MB	✓
nextStartRea..uration (ms)	512ms	515ms	N/A

Client Bundles (main, webpack)

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Rendered Page Sizes

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link.html gzip	537 B	537 B	✓
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Edge SSR bundle Size

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edge-ssr.js gzip	128 kB	128 kB	N/A
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Middleware size

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Next Runtimes

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build cache Overall increase ⚠️

	vercel/next.js canary	vercel/next.js 12-07-test_move_hmr_main_test_to_a_separate_file	Change
0.pack gzip	2.03 MB	2.04 MB	⚠️ +2.11 kB
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Overall change	2.18 MB	2.18 MB	⚠️ +2.37 kB

Diff details

Diff for main-HASH.js

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Commit: 390c19d