Bug 1355765 - Fix the misspelling of branches in regress-346773.js. r=jandem

--HG--
extra : amend_source : cdb7ffad8626284d5d173f986460a9d704b20d57

js/src/tests/non262/extensions/regress-346773.js

@@ -5,7 +5,7 @@
 
 //-----------------------------------------------------------------------------
 var BUGNUMBER = 346773;
-var summary = 'Do not crash compiling with misplaced brances in function';
+var summary = 'Do not crash compiling with misplaced branches in function';
 var actual = 'No Crash';
 var expect = 'No Crash';