Hoist @typedef and @import tags to containing scopes that permit them

[ahejlsberg]

Fixes #2002.

[ahejlsberg]

These errors are not reported by the old compiler, yet it still hoists and generates an invalid .d.ts file.

[Copilot]

Pull Request Overview

This PR implements hoisting of @typedef declarations from class member contexts to the module scope, allowing them to be referenced outside of their declaration context. The key change enables JSDoc @typedef and @callback tags defined within class members to be visible at the module level.

Key Changes

• Modified parseListIndex to propagate JSTypeAliasDeclaration nodes outward when parsing contexts other than source elements or block statements
• Added test case typedefHoisting.ts to verify the hoisting behavior
• Updated baselines showing improved type resolution and elimination of "Cannot find name" errors

Reviewed Changes

Copilot reviewed 22 out of 22 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
testdata/tests/cases/compiler/typedefHoisting.ts	New test case demonstrating typedef hoisting from class members
internal/parser/parser.go	Core parser logic to propagate JSTypeAliasDeclaration nodes to outer scope
testdata/baselines/reference/compiler/typedefHoisting.*	New baseline files for the typedef hoisting test
testdata/baselines/reference/submodule/conformance/callbackOnConstructor.*	Updated baselines showing eliminated error and corrected type exports
testdata/baselines/reference/submodule/conformance/typedefOnSemicolonClassElement.*	Updated baselines showing correct typedef hoisting to module scope
testdata/baselines/reference/submodule/conformance/jsdocTemplateClass.*	Updated baselines with new errors for typedefs referencing class type parameters
testdata/baselines/reference/submodule/conformance/typedefInnerNamepaths.*	Updated baselines with additional duplicate identifier errors