Small fixes to fourslash tests conversion script

[gabritto]

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[Copilot]

Pull Request Overview

This PR updates the fourslash test conversion pipeline and associated Go test harness to align with recent changes and add new autogenerated tests.

• Adjusts the GoToEachMarker method signature in the Go test harness and updates existing tests accordingly.
• Extends the conversion script (convertFourslash.mts) to handle new TS AST patterns (isStringLiteralLike, deprecated sort text, marker initializers, isFromUncheckedFile).
• Adds a suite of new autogenerated completion tests under internal/fourslash/tests/gen and updates the list of failing tests.

Reviewed Changes

Copilot reviewed 24 out of 24 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
internal/fourslash/tests/gen/completionsWithDeprecatedTag1_test.go	Add autogenerated deprecated-tag completion test #1
internal/fourslash/tests/gen/completionsWithDeprecatedTag2_test.go	Add autogenerated deprecated-tag completion test #2
internal/fourslash/tests/gen/completionsWithDeprecatedTag4_test.go	Add autogenerated deprecated-tag completion test #4
internal/fourslash/tests/gen/completionsWithDeprecatedTag5_test.go	Add autogenerated deprecated-tag completion test #5
internal/fourslash/tests/gen/completionsWithDeprecatedTag6_test.go	Add autogenerated deprecated-tag completion test #6
internal/fourslash/tests/gen/completionsWithDeprecatedTag7_test.go	Add autogenerated deprecated-tag completion test #7
internal/fourslash/tests/gen/completionsWithDeprecatedTag9_test.go	Add autogenerated deprecated-tag completion test #9
internal/fourslash/tests/gen/completionsOverridingMethod10_test.go	Add autogenerated overriding-method completion test #10
internal/fourslash/tests/gen/completionsOverridingMethod11_test.go	Add autogenerated overriding-method completion test #11
internal/fourslash/tests/gen/completionsLiteralDirectlyInRestConstrainedToTupleType_test.go	Add literal-in-rest (tuple) completion test
internal/fourslash/tests/gen/completionsLiteralDirectlyInRestConstrainedToArrayType_test.go	Add literal-in-rest (array) completion test
internal/fourslash/tests/gen/completionsLiteralDirectlyInArgumentWithNullableConstraint_test.go	Add literal-in-argument (nullable) completion test
internal/fourslash/tests/gen/completionsJsxExpression_test.go	Add JSX expression completion test
internal/fourslash/tests/gen/completionsForStringDependingOnContexSensitiveSignature_test.go	Add context-sensitive string signature completion test
internal/fourslash/tests/gen/completionsECMAPrivateMember_test.go	Add ECMA private member completion test
internal/fourslash/tests/gen/completionNoAutoInsertQuestionDotForThis_test.go	Add no-auto-insert ?. completion test
internal/fourslash/tests/gen/completionListAfterStringLiteral1_test.go	Add string literal member list completion test
internal/fourslash/tests/gen/completionListAfterRegularExpressionLiteral1_test.go	Add regex literal member list completion test
internal/fourslash/tests/gen/completionListAfterRegularExpressionLiteral01_test.go	Add regex literal (with preceding var) list completion test
internal/fourslash/tests/gen/completionInUncheckedJSFile_test.go	Add completion in unchecked JS file test
internal/fourslash/tests/completionListInUnclosedTypeArguments_test.go	Update GoToEachMarker invocation to new signature
internal/fourslash/fourslash.go	Change GoToEachMarker signature to drop t *testing.T from the action callback
internal/fourslash/_scripts/failingTests.txt	Update list of failing tests to include the newly added ones
internal/fourslash/_scripts/convertFourslash.mts	Enhance parsing of markers, string literals, deprecated sort text, and unchecked file