power-assert: Add deepStrictEqual and notDeepStrictEqual methods

power-assert/power-assert-tests.ts

@@ -10,6 +10,10 @@ assert.equal(3, "3", "uses == comparator");
 
 assert.notStrictEqual(2, "2", "uses === comparator");
 
+assert.deepStrictEqual([{a:1}], [{a:1}], "uses === comparator");
+
+assert.notDeepStrictEqual([{a:1}], [{a:1}], "uses === comparator");
+
 assert.throws(() => {
     throw "a hammer at your face";
 }, undefined, "DODGED IT");

power-assert/power-assert.d.ts

@@ -37,6 +37,10 @@ declare namespace assert {
 
     export function notStrictEqual(actual:any, expected:any, message?:string):void;
 
+    export function deepStrictEqual(actual:any, expected:any, message?:string):void;
+
+    export function notDeepStrictEqual(actual:any, expected:any, message?:string):void;
+
     export var throws:{
         (block:Function, message?:string): void;
         (block:Function, error:Function, message?:string): void;