Bug 1149797 - Update browser jstests to treat ecma_6/extensions tests as 1.8, so that let is interpreted as a statement and not as an expression. r=bustage in a CLOSED TREE

js/src/tests/browser.js

@@ -336,6 +336,10 @@ function jsTestDriverBrowserInit()
     {
       properties.version = '1.8';
     }
+    else if (properties.test.match(/^ecma_6\/extensions/))
+    {
+      properties.version = '1.8';
+    }
   }
 
   // default to language=type;text/javascript. required for

js/src/tests/ecma_6/Class/shell.js

@@ -1,4 +1,6 @@
-// Enable "let" in shell builds. So silly.
+// NOTE: This only turns on 1.8.5 in shell builds.  The browser requires the
+//       futzing in js/src/tests/browser.js (which only turns on 1.8, the most
+//       the browser supports).
 if (typeof version != 'undefined')
   version(185);
 

js/src/tests/ecma_6/extensions/shell.js

@@ -0,0 +1,5 @@
+// NOTE: This only turns on 1.8.5 in shell builds.  The browser requires the
+//       futzing in js/src/tests/browser.js (which only turns on 1.8, the most
+//       the browser supports).
+if (typeof version != 'undefined')
+  version(185);