Function isAritySmaller

test/fixtures/snapshot/typescript.js:73270–73282

If the contextual signature has fewer parameters than the function expression, do not use it

(signature, target)

        }
        /** If the contextual signature has fewer parameters than the function expression, do not use it */
        function isAritySmaller(signature, target) {
            var targetParameterCount = 0;
            for (; targetParameterCount < target.parameters.length; targetParameterCount++) {
                var param = target.parameters[targetParameterCount];
                if (param.initializer || param.questionToken || param.dotDotDotToken || isJSDocOptionalParameter(param)) {
                    break;
                }
            }
            if (target.parameters.length && ts.parameterIsThisKeyword(target.parameters[0])) {
                targetParameterCount--;
            }
            return !hasEffectiveRestParameter(signature) && getParameterCount(signature) < targetParameterCount;
        }
        function getContextualSignatureForFunctionLikeDeclaration(node) {
            // Only function expressions, arrow functions, and object literal methods are contextually typed.
            return ts.isFunctionExpressionOrArrowFunction(node) || ts.isObjectLiteralMethod(node)