feat(javascript): move a value past a read of a built-in in the minifier - #22499

#22473 counts a conversion as code that may run, so the value
#22499's improved case moved past `console` now has effects and
stays put; it now moves a comparison, which converts nothing. And
#22499 now shortens #22473's literal case, whose assertion holds the
output to terser's, so that case runs with the improve phase off.

Claude-Session: https://claude.ai/code/session_01ViD41i2KdwwGxrDk7yrjeD

tightenBody declared its seven steps inside itself, sharing `changed`
and the scope with them, so every call built them again, 54,503 times
per minify of typescript.js, with the closures some of them built per
statement on top. The steps are now module-level functions handed one
state object per nesting depth, and their inner closures take what they
read as arguments.

Also carries #22521's fit of two printer tests to #22473 and #22499
together, which fail on main and gate the integration jobs.

#22473 counts a conversion as code that may run, so the value
#22499's improved case moved past `console` now has effects and
stays put; it now moves a comparison, which converts nothing. And
#22499 now shortens #22473's literal case, whose assertion holds the
output to terser's, so that case runs with the improve phase off.

With both in, `vercel/ms` is bigger than oxc's output again (787
against 781 gzip), so it goes back on OXC_SMALLER, where #22499 had
retired it on its own.

Claude-Session: https://claude.ai/code/session_01ViD41i2KdwwGxrDk7yrjeD

tightenBody declared its seven steps inside itself, sharing `changed`
and the scope with them, so every call built them again, 54,503 times
per minify of typescript.js, with the closures some of them built per
statement on top. The steps are now module-level functions handed one
state object per nesting depth, and their inner closures take what they
read as arguments.

Also carries #22521's fit of two printer tests to #22473 and #22499
together, which fail on main and gate the integration jobs.

tightenBody declared its seven steps inside itself, sharing `changed`
and the scope with them, so every call built them again, 54,503 times
per minify of typescript.js, with the closures some of them built per
statement on top. The steps are now module-level functions handed one
state object per nesting depth, and their inner closures take what they
read as arguments.

Also carries #22521's fit of two printer tests and of the `vercel/ms`
entry in OXC_SMALLER to #22473 and #22499 together, which fail on
main and gate the integration jobs.

#22473 counts a conversion as code that may run, so the value
#22499's improved case moved past `console` now has effects and
stays put; it now moves a comparison, which converts nothing. And
#22499 now shortens #22473's literal case, whose assertion holds the
output to terser's, so that case runs with the improve phase off.

With both in, `vercel/ms` is bigger than oxc's output again (787
against 781 gzip), so it goes back on OXC_SMALLER, where #22499 had
retired it on its own.

Claude-Session: https://claude.ai/code/session_01ViD41i2KdwwGxrDk7yrjeD

#22473 counts a conversion as code that may run, so the value
#22499's improved case moved past `console` now has effects and
stays put; it now moves a comparison, which converts nothing. And
#22499 now shortens #22473's literal case, whose assertion holds the
output to terser's, so that case runs with the improve phase off.

With both in, `vercel/ms` is bigger than oxc's output again (787
against 781 gzip), so it goes back on OXC_SMALLER, where #22499 had
retired it on its own.

Claude-Session: https://claude.ai/code/session_01ViD41i2KdwwGxrDk7yrjeD

#22473 counts a conversion as code that may run, so the value
#22499's improved case moved past `console` now has effects and
stays put; it now moves a comparison, which converts nothing. And
#22499 now shortens #22473's literal case, whose assertion holds the
output to terser's, so that case runs with the improve phase off.

With both in, `vercel/ms` is bigger than oxc's output again (787
against 781 gzip), so it goes back on OXC_SMALLER, where #22499 had
retired it on its own.

Claude-Session: https://claude.ai/code/session_01ViD41i2KdwwGxrDk7yrjeD

#22473 counts a conversion as code that may run, so the value
#22499's improved case moved past `console` now has effects and
stays put; it now moves a comparison, which converts nothing. And
#22499 now shortens #22473's literal case, whose assertion holds the
output to terser's, so that case runs with the improve phase off.

With both in, `vercel/ms` is bigger than oxc's output again (787
against 781 gzip), so it goes back on OXC_SMALLER, where #22499 had
retired it on its own.

Claude-Session: https://claude.ai/code/session_01ViD41i2KdwwGxrDk7yrjeD

#22473 counts a conversion as code that may run, so the value
#22499's improved case moved past `console` now has effects and
stays put; it now moves a comparison, which converts nothing. And
#22499 now shortens #22473's literal case, whose assertion holds the
output to terser's, so that case runs with the improve phase off.

With both in, `vercel/ms` is bigger than oxc's output again (787
against 781 gzip), so it goes back on OXC_SMALLER, where #22499 had
retired it on its own. And #22502 leaves terser's
`side_effects_cascade_3` no bigger than oxc's, so it comes off.

Claude-Session: https://claude.ai/code/session_01ViD41i2KdwwGxrDk7yrjeD

#22473 counts a conversion as code that may run, so the value
#22499's improved case moved past `console` now has effects and
stays put; it now moves a comparison, which converts nothing. And
#22499 now shortens #22473's literal case, whose assertion holds the
output to terser's, so that case runs with the improve phase off.

With both in, `vercel/ms` is bigger than oxc's output again (787
against 781 gzip), so it goes back on OXC_SMALLER, where #22499 had
retired it on its own. And #22502 leaves terser's
`side_effects_cascade_3` no bigger than oxc's, so it comes off.

Claude-Session: https://claude.ai/code/session_01ViD41i2KdwwGxrDk7yrjeD

…ame value in the minifier (#22507)

* feat(javascript): merge consecutive `if`s returning or throwing the same value in the minifier

`if (a) return x; if (b) return x;` becomes `if (a || b) return x;`, and
`throw` alike: the second test runs only where the first did not leave.

Claude-Session: https://claude.ai/code/session_01ViD41i2KdwwGxrDk7yrjeD

* test(javascript): fit two minifier tests to #22473 and #22499 together

#22473 counts a conversion as code that may run, so the value
#22499's improved case moved past `console` now has effects and
stays put; it now moves a comparison, which converts nothing. And
#22499 now shortens #22473's literal case, whose assertion holds the
output to terser's, so that case runs with the improve phase off.

With both in, `vercel/ms` is bigger than oxc's output again (787
against 781 gzip), so it goes back on OXC_SMALLER, where #22499 had
retired it on its own.

Claude-Session: https://claude.ai/code/session_01ViD41i2KdwwGxrDk7yrjeD

#22473 counts a conversion as code that may run, so the value
#22499's improved case moved past `console` now has effects and
stays put; it now moves a comparison, which converts nothing. And
#22499 now shortens #22473's literal case, whose assertion holds the
output to terser's, so that case runs with the improve phase off.

With both in, `vercel/ms` is bigger than oxc's output again (787
against 781 gzip), so it goes back on OXC_SMALLER, where #22499 had
retired it on its own. And #22502 leaves terser's
`side_effects_cascade_3` no bigger than oxc's, so it comes off.

Claude-Session: https://claude.ai/code/session_01ViD41i2KdwwGxrDk7yrjeD

#22521)

#22473 counts a conversion as code that may run, so the value
#22499's improved case moved past `console` now has effects and
stays put; it now moves a comparison, which converts nothing. And
#22499 now shortens #22473's literal case, whose assertion holds the
output to terser's, so that case runs with the improve phase off.

With both in, `vercel/ms` is bigger than oxc's output again (787
against 781 gzip), so it goes back on OXC_SMALLER, where #22499 had
retired it on its own. And #22502 leaves terser's
`side_effects_cascade_3` no bigger than oxc's, so it comes off.

Claude-Session: https://claude.ai/code/session_01ViD41i2KdwwGxrDk7yrjeD

…22504)

* perf(javascript): print a mangled program once, naming it afterwards

The mangle phase printed the tree twice: once to count the characters
the names are chosen from, once for the result. It now prints before
the names are chosen, recording where each name and each import or
export `as` clause lies, counts the characters off that text and writes
the names into it once chosen, moving the source map's columns with
them. The `let` declarations the improve phase left for after naming
are written before that print, and the count puts back what they
changed. A print that wrote a comment, shebang or preamble still counts
with a print of its own, as those are not counted.

* test(javascript): fit two minifier tests to #22473 and #22499 together

#22473 counts a conversion as code that may run, so the value
#22499's improved case moved past `console` now has effects and
stays put; it now moves a comparison, which converts nothing. And
#22499 now shortens #22473's literal case, whose assertion holds the
output to terser's, so that case runs with the improve phase off.

With both in, `vercel/ms` is bigger than oxc's output again (787
against 781 gzip), so it goes back on OXC_SMALLER, where #22499 had
retired it on its own. And #22502 leaves terser's
`side_effects_cascade_3` no bigger than oxc's, so it comes off.

Claude-Session: https://claude.ai/code/session_01ViD41i2KdwwGxrDk7yrjeD