Consider as const expressions as potentially context sensitive

[Andarist]

fixes #62220

[Copilot]

Pull Request Overview

This PR fixes TypeScript issue #62220 by making as const expressions context sensitive during type inference. The change allows the TypeScript compiler to properly infer types when as const is used in function arguments that depend on intra-expression type relationships.

Key changes:

• Modified the isContextSensitive function in the type checker to consider as const expressions as potentially context sensitive
• Added comprehensive test cases demonstrating the improved type inference behavior

Reviewed Changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
src/compiler/checker.ts	Core logic change to treat as const expressions as context sensitive when applied to context sensitive expressions
tests/cases/conformance/types/typeRelationships/typeInference/intraExpressionInferences.ts	Test cases showing improved type inference with as const expressions
tests/baselines/reference/intraExpressionInferences.types	Updated type baselines showing more precise type inference (100 vs number)
tests/baselines/reference/intraExpressionInferences.symbols	Updated symbol baselines reflecting the new test cases
tests/baselines/reference/intraExpressionInferences.js	Updated JavaScript output baselines
tests/baselines/reference/intraExpressionInferences.errors.txt	Updated error baselines with new test content

[typescript-bot]

With 6.0 out as the final release vehicle for this codebase, we're closing all PRs that don't fit the merge criteria for post-6.0 patches. If you think this was a mistake and this PR fits the post-6.0 patch criteria, please post to the 6.0 iteration issue with details (specifically, which PR and which patch criteria it satisfies).

Next steps for PRs:

• For crash bugfixes or language service improvements, PRs are currently accepted at the typescript-go repo
• Changes to type system behavior should wait until after 7.0, at which point mainline TypeScript development will resume in this repository with the Go codebase
• Library file updates (lib.d.ts etc) continue to live in this repo or the DOM Generator repo as appropriate