Add defintions for _(...).functions, _(...).methods

lodash/lodash-tests.ts

@@ -708,6 +708,9 @@ result = <any>_.forOwnRight({ '0': 'zero', '1': 'one', 'length': 2 }, function(n
 result = <string[]>_.functions(_);
  	result = <string[]>_.methods(_);
 
+ 	result = <_.LoDashArrayWrapper<string>>_(_).functions();
+ 		result = <_.LoDashArrayWrapper<string>>_(_).methods();
+
 result = <boolean>_.has({ 'a': 1, 'b': 2, 'c': 3 }, 'b');
 
 result = <any>_.invert({ 'first': 'moe', 'second': 'larry' });

lodash/lodash.d.ts

@@ -3347,6 +3347,18 @@ declare module _ {
 			methods(object: any): string[];
 	}
 
+	interface LoDashObjectWrapper {
+		/**
+		* @see _.functions
+		**/
+		functions(): _.LoDashArrayWrapper<string>
+
+			/**
+			* @see _.functions
+			**/
+			methods(): _.LoDashArrayWrapper<string>
+	}
+
 	//_.has
 	interface LoDashStatic {
 		/**