dillon1000/react

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[compiler] Add Identifier.declarationId

Adds `Identifier.declarationId` and the new `DeclarationId` (simulated) opaque type. DeclarationId allows uniquely identifying a variable in the original source, ie regardless of reassignments. This allows us to stay in SSA form throughout compilation (see next diff) while still being able to distinguish SSA versions (via IdentifierId) and non-SSA versions (DeclarationId).

ghstack-source-id: f2547a58aa7b30cea29fcfe23d5cb45583858a4e
Pull Request resolved: https://github.com/facebook/react/pull/30569
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Joe Savona authored 22360089b5e40ccfa5df26f1ec491b5c46e7ad61 Parent 02217c9
Changed paths4 files
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M compiler/packages/babel-plugin-react-compiler/src/HIR/HIR.ts ModifiedM compiler/packages/babel-plugin-react-compiler/src/HIR/HIRBuilder.ts ModifiedM compiler/packages/babel-plugin-react-compiler/src/Inference/InlineImmediatelyInvokedFunctionExpressions.ts ModifiedM compiler/packages/babel-plugin-react-compiler/src/SSA/EnterSSA.ts Modified
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