Follow-up to bug 755808 comment 6. rs=sfink on #jsapi.

js/src/shell/js.cpp

@@ -796,12 +796,12 @@ Evaluate(JSContext *cx, unsigned argc, jsval *vp)
         return false;
     }
 
-    bool newContext;
-    RootedObject global(cx, NULL);
+    bool newContext = false;
     bool compileAndGo = true;
     const char *fileName = "@evaluate";
     JSAutoByteString fileNameBytes;
     unsigned lineNumber = 1;
+    RootedObject global(cx, NULL);
 
     global = JS_GetGlobalForObject(cx, JSVAL_TO_OBJECT(JS_CALLEE(cx, vp)));
     if (!global)