Port 'go to type definition' tests

[gabritto]

No description provided.

[Copilot]

Pull Request Overview

Ports and adds fourslash tests and baseline handling for "go to type definition" functionality, including scripting support and a new verification helper.

• Added numerous baseline .baseline.jsonc reference files for goToType scenarios.
• Implemented VerifyBaselineGoToTypeDefinition in fourslash test harness and extended the conversion script to generate corresponding Go test code.
• Added generated Go tests invoking the new type definition baseline verification; marked one JSDoc-related test as skipped and listed it in failing tests.

Reviewed Changes

Copilot reviewed 43 out of 43 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
testdata/baselines/reference/fourslash/goToType/typedefinition01.baseline.jsonc	New baseline for basic type definition via imported class.
testdata/baselines/reference/fourslash/goToType/goToTypeDefinition_typedef.baseline.jsonc	Baseline for JSDoc typedef resolution.
testdata/baselines/reference/fourslash/goToType/goToTypeDefinition_typeReference.baseline.jsonc	Baseline for generic type reference.
testdata/baselines/reference/fourslash/goToType/goToTypeDefinition_returnType.baseline.jsonc	Baselines for multiple return type targets.
testdata/baselines/reference/fourslash/goToType/goToTypeDefinition_promiseType.baseline.jsonc	Baselines for async function promise and variable.
testdata/baselines/reference/fourslash/goToType/goToTypeDefinition_arrayType.baseline.jsonc	Baselines for array and custom array types.
testdata/baselines/reference/fourslash/goToType/goToTypeDefinition_Pick.baseline.jsonc	Baselines for mapped Pick type usage.
testdata/baselines/reference/fourslash/goToType/goToTypeDefinitionUnionType.baseline.jsonc	Baseline for union type navigation.
testdata/baselines/reference/fourslash/goToType/goToTypeDefinitionPrimitives.baseline.jsonc	Baselines for primitive and union primitive members.
testdata/baselines/reference/fourslash/goToType/goToTypeDefinitionModule.baseline.jsonc	Baselines for module and typeof module variable.
testdata/baselines/reference/fourslash/goToType/goToTypeDefinitionModifiers.baseline.jsonc	Baselines for class member modifiers and keywords.
testdata/baselines/reference/fourslash/goToType/goToTypeDefinitionImportMeta.baseline.jsonc	Baseline for ImportMeta interface resolution.
testdata/baselines/reference/fourslash/goToType/goToTypeDefinitionEnumMembers.baseline.jsonc	Baseline for enum member type.
testdata/baselines/reference/fourslash/goToType/goToTypeDefinitionAliases.baseline.jsonc	Baselines for exported/imported alias chains.
testdata/baselines/reference/fourslash/goToType/goToTypeDefinition5.baseline.jsonc	Baseline for shadowed identifier (var/type).
testdata/baselines/reference/fourslash/goToType/goToTypeDefinition4.baseline.jsonc	Baseline for conflicting type/value export name.
testdata/baselines/reference/fourslash/goToType/goToTypeDefinition3.baseline.jsonc	Baseline for simple type alias usage.
testdata/baselines/reference/fourslash/goToType/goToTypeDefinition2.baseline.jsonc	Baseline for property referencing aliased interface.
testdata/baselines/reference/fourslash/goToType/goToTypeDefinition.baseline.jsonc	Baseline for basic class instance.
testdata/baselines/reference/fourslash/goToDefinition/goToTypeDefinition4.baseline.jsonc	Added definition baseline for overlapping type/value symbol test.
internal/fourslash/tests/gen/typedefinition01_test.go	New generated test for basic type definition.
internal/fourslash/tests/gen/jsDocServices_test.go	Added (skipped) JSDoc services test including type definition verification.
internal/fourslash/tests/gen/goToTypeDefinition_typedef_test.go	Generated test for JSDoc typedef.
internal/fourslash/tests/gen/goToTypeDefinition_typeReference_test.go	Generated test for generic type reference.
internal/fourslash/tests/gen/goToTypeDefinition_test.go	Generated test for class instance type definition.
internal/fourslash/tests/gen/goToTypeDefinition_returnType_test.go	Generated test covering various return types.
internal/fourslash/tests/gen/goToTypeDefinition_promiseType_test.go	Generated promise resolution test.
internal/fourslash/tests/gen/goToTypeDefinition_arrayType_test.go	Generated array/custom array tests.
internal/fourslash/tests/gen/goToTypeDefinition_Pick_test.go	Generated Pick mapped type test.
internal/fourslash/tests/gen/goToTypeDefinitionUnionType_test.go	Generated union type test.
internal/fourslash/tests/gen/goToTypeDefinitionPrimitives_test.go	Generated primitives navigation test.
internal/fourslash/tests/gen/goToTypeDefinitionModule_test.go	Generated module/typeof test.
internal/fourslash/tests/gen/goToTypeDefinitionModifiers_test.go	Generated modifiers test.
internal/fourslash/tests/gen/goToTypeDefinitionImportMeta_test.go	Generated ImportMeta test.
internal/fourslash/tests/gen/goToTypeDefinitionEnumMembers_test.go	Generated enum member test.
internal/fourslash/tests/gen/goToTypeDefinitionAliases_test.go	Generated alias chain test.
internal/fourslash/tests/gen/goToTypeDefinition5_test.go	Generated shadowed identifier test.
internal/fourslash/tests/gen/goToTypeDefinition4_test.go	Generated conflicting symbol test including go-to-def.
internal/fourslash/tests/gen/goToTypeDefinition3_test.go	Generated simple alias test.
internal/fourslash/tests/gen/goToTypeDefinition2_test.go	Generated property alias test.
internal/fourslash/fourslash.go	Added VerifyBaselineGoToTypeDefinition implementation.
internal/fourslash/_scripts/failingTests.txt	Registered skipped JSDoc test as failing.
internal/fourslash/_scripts/convertFourslash.mts	Extended script to parse and generate go-to-type baseline commands.