Function isThislessType

test/fixtures/snapshot/typescript.js:57558–57579

* A type is free of this references if it's the any, string, number, boolean, symbol, or void keyword, a string * literal type, an array with an element type that is free of this references, or a type reference that is * free of this references.

(node)

         * free of this references.
         */
        function isThislessType(node) {
            switch (node.kind) {
                case 130 /* SyntaxKind.AnyKeyword */:
                case 155 /* SyntaxKind.UnknownKeyword */:
                case 150 /* SyntaxKind.StringKeyword */:
                case 147 /* SyntaxKind.NumberKeyword */:
                case 158 /* SyntaxKind.BigIntKeyword */:
                case 133 /* SyntaxKind.BooleanKeyword */:
                case 151 /* SyntaxKind.SymbolKeyword */:
                case 148 /* SyntaxKind.ObjectKeyword */:
                case 114 /* SyntaxKind.VoidKeyword */:
                case 153 /* SyntaxKind.UndefinedKeyword */:
                case 143 /* SyntaxKind.NeverKeyword */:
                case 196 /* SyntaxKind.LiteralType */:
                    return true;
                case 183 /* SyntaxKind.ArrayType */:
                    return isThislessType(node.elementType);
                case 178 /* SyntaxKind.TypeReference */:
                    return !node.typeArguments || node.typeArguments.every(isThislessType);
            }
            return false;
        }
        /** A type parameter is thisless if its constraint is thisless, or if it has no constraint. */
        function isThislessTypeParameter(node) {
            var constraint = ts.getEffectiveConstraintOfTypeParameter(node);