Fix process.hrtime struct

Author: blakeembrey

0.10/node.d.ts

@@ -343,7 +343,7 @@ declare namespace NodeJS {
     nextTick(callback: Function): void;
     umask(mask?: number): number;
     uptime(): number;
-    hrtime(time?: number[]): number[];
+    hrtime(time?: [number, number]): [number, number];
 
     // Worker
     send?(message: any, sendHandle?: any): void;

0.12/node.d.ts

@@ -417,7 +417,7 @@ declare namespace NodeJS {
     nextTick(callback: Function): void;
     umask(mask?: number): number;
     uptime(): number;
-    hrtime(time?: number[]): number[];
+    hrtime(time?: [number, number]): [number, number];
 
     // Worker
     send?(message: any, sendHandle?: any): void;

4.0/node.d.ts

@@ -565,7 +565,7 @@ declare namespace NodeJS {
     nextTick(callback: Function): void;
     umask(mask?: number): number;
     uptime(): number;
-    hrtime(time?: number[]): number[];
+    hrtime(time?: [number, number]): [number, number];
     domain: Domain;
 
     // Worker

6.0/node.d.ts

@@ -590,7 +590,7 @@ declare namespace NodeJS {
     nextTick(callback: Function): void;
     umask(mask?: number): number;
     uptime(): number;
-    hrtime(time?: number[]): number[];
+    hrtime(time?: [number, number]): [number, number];
     domain: Domain;
 
     // Worker