Support custom typeof functions

/// <reference types="blissfuljs"/>
declare var something: any;
if ($.type(something) === "array") {
	(something as any[]).forEach(v => {/* stuff */})
}

/**
 * @param obj The variable to check the type of.
 * @return The result of `typeof obj` or the class name in lowercase for objects.
 *         In the case of numbers, if the value is `NaN`, then the result is `nan`.
 */
declare function type(obj: null): "null";
declare function type(obj: undefined): "undefined";

// This is to ensure that the type system short-circuits when it encounters primitive types.
declare function type(obj: number): "number" | "nan";
declare function type(obj: string): "string";
declare function type(obj: symbol): "symbol";
declare function type(obj: boolean): "boolean";

// Needed to ensure proper return values when wrapper objects are used.
/* tslint:disable:ban-types */
declare function type(obj: number | Number): "number" | "nan";
declare function type(obj: string | String): "string";
declare function type(obj: symbol | Symbol): "symbol";
declare function type(obj: boolean | Boolean): "boolean";
declare function type(obj: Function): "function";
/* tslint:enable:ban-types */

declare function type(obj: any[]): "array";
declare function type(obj: RegExp): "regexp";
declare function type(obj: any): string;
export = type;

import type = require("./type-func");
declare var something: any;

if (type(something) === "array") {
	// $ExpectType any[]
	something;
} else if (type(somthing) === "number") {
	// $ExpectType number
	something;
}