compiler: repro for unmerged scopes due to intermediates

[josephsavona]

Stack from ghstack (oldest at bottom):

• -> #29197
• #29157
• #29156
• #29155

Repro of a case where we should ideally merge consecutive scopes, but where intermediate temporaries prevent the scopes from merging.

We'd need to reorder instructions in order to merge these.

[vercel[bot]]

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Name	Status	Preview	Comments	Updated (UTC)
react-compiler-playground	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	May 23, 2024 0:12am

[react-sizebot]

Comparing: bf046e86531141d0eb9ffc1165f775a57ffb00f5...919c68bd6151d5d3e92ac99ca2ca000056876063

Critical size changes

Includes critical production bundles, as well as any change greater than 2%:

Name	+/-	Base	Current	+/- gzip	Base gzip	Current gzip
oss-stable/react-dom/cjs/react-dom.production.js	=	6.66 kB	6.66 kB	=	1.82 kB	1.82 kB
oss-stable/react-dom/cjs/react-dom-client.production.js	=	495.71 kB	495.71 kB	=	88.78 kB	88.78 kB
oss-experimental/react-dom/cjs/react-dom.production.js	=	6.67 kB	6.67 kB	=	1.83 kB	1.83 kB
oss-experimental/react-dom/cjs/react-dom-client.production.js	=	500.51 kB	500.51 kB	=	89.47 kB	89.47 kB
facebook-www/ReactDOM-prod.classic.js	=	592.86 kB	592.86 kB	=	104.28 kB	104.28 kB
facebook-www/ReactDOM-prod.modern.js	=	569.08 kB	569.08 kB	=	100.69 kB	100.69 kB
test_utils/ReactAllWarnings.js	Deleted	64.35 kB	0.00 kB	Deleted	16.05 kB	0.00 kB

Significant size changes

Includes any change greater than 0.2%:

Expand to show

Name	+/-	Base	Current	+/- gzip	Base gzip	Current gzip
test_utils/ReactAllWarnings.js	Deleted	64.35 kB	0.00 kB	Deleted	16.05 kB	0.00 kB

Generated by :no_entry_sign: dangerJS against 919c68bd6151d5d3e92ac99ca2ca000056876063