Merge pull request #6569 from chrootsu/lodash-snakeCase

lodash: signatures of the method _.snakeCase have been changed

lodash/lodash-tests.ts

@@ -4482,8 +4482,20 @@ module TestRepeat {
 }
 
 // _.snakeCase
-result = <string>_.snakeCase('Foo Bar');
-result = <string>_('Foo Bar').snakeCase();
+module TestSnakeCase {
+    {
+        let result: string;
+
+        result = _.snakeCase('Foo Bar');
+        result = _('Foo Bar').snakeCase();
+    }
+
+    {
+        let result: _.LoDashExplicitWrapper<string>;
+
+        result = _('Foo Bar').chain().snakeCase();
+    }
+}
 
 // _.startCase
 module TestStartCase {

lodash/lodash.d.ts

@@ -9962,6 +9962,7 @@ declare module _ {
     interface LoDashStatic {
         /**
          * Converts string to snake case.
+         *
          * @param string The string to convert.
          * @return Returns the snake cased string.
          */
@@ -9975,6 +9976,13 @@ declare module _ {
         snakeCase(): string;
     }
 
+    interface LoDashExplicitWrapper<T> {
+        /**
+         * @see _.snakeCase
+         */
+        snakeCase(): LoDashExplicitWrapper<string>;
+    }
+
     //_.startCase
     interface LoDashStatic {
         /**