Added getFormContext to v8 as it should be available there as well.

types/xrm/v8/index.d.ts

@@ -1,6 +1,6 @@
 // Type definitions for Microsoft Dynamics xRM API 8.2
 // Project: http://www.microsoft.com/en-us/download/details.aspx?id=44567
-// Definitions by: David Berry <https://github.com/6ix4our>, Matt Ngan <https://github.com/mattngan>, Markus Mauch <https://github.com/markusmauch>, Daryl LaBar <https://github.com/daryllabar>, Tully H <https://github.com/clownwilleatme>
+// Definitions by: David Berry <https://github.com/6ix4our>, Matt Ngan <https://github.com/mattngan>, Markus Mauch <https://github.com/markusmauch>, Daryl LaBar <https://github.com/daryllabar>, Tully H <https://github.com/clownwilleatme>, Marius Agur <https://github.com/mariusagur>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 // TypeScript Version: 2.1
 
@@ -1101,6 +1101,18 @@ declare namespace Xrm {
              *
              * @remarks Used to pass values between handlers of an event.
              */
+            getFormContext(): Page;
+
+            /**
+             * Gets the shared variable with the specified key.
+             *
+             * @param T Generic type parameter.
+             * @param key The key.
+             *
+             * @return The shared variable.
+             *
+             * @remarks Used to pass values between handlers of an event.
+             */
             getSharedVariable<T>(key: string): T;
 
             /**