Function isValidDeclarationForTupleLabel

test/fixtures/snapshot/typescript.js:77526–77528

(d)

            return symbol.valueDeclaration && ts.isParameter(symbol.valueDeclaration) && ts.isIdentifier(symbol.valueDeclaration.name);
        }
        function isValidDeclarationForTupleLabel(d) {
            return d.kind === 197 /* SyntaxKind.NamedTupleMember */ || (ts.isParameter(d) && d.name && ts.isIdentifier(d.name));
        }
        function getNameableDeclarationAtPosition(signature, pos) {
            var paramCount = signature.parameters.length - (signatureHasRestParameter(signature) ? 1 : 0);
            if (pos < paramCount) {