Merge pull request #10482 from elektromodulator/master

[Drop] Fix issue where createContext did not return constructable type

drop/drop-tests.ts

@@ -36,3 +36,11 @@ var e = new Drop({
     content: () => greenBox
 });
 
+var Tooltip = Drop.createContext({
+    classPrefix: 'tooltip'
+});
+
+var t = new Tooltip({
+    target: yellowBox,
+    content: () => greenBox
+});

drop/drop.d.ts

@@ -27,7 +27,7 @@ declare class Drop {
     public once(event: string, handler: Function, context?: any): void;
     public off(event: string, handler?: Function): void;
 
-    public static createContext(options: Drop.IDropContextOptions): Drop;
+    public static createContext(options: Drop.IDropContextOptions): typeof Drop;
 }
 
 declare namespace Drop {
@@ -59,4 +59,3 @@ declare namespace Drop {
 declare module "drop" {
     export = Drop;
 }
-