Bug 736807 - InitExnPrivate needs to root values since they can now be wrapped (r=bholley)

--HG--
extra : rebase_source : 4aeb6c6b271588c57c4b6e166c630a72c8c7d0d5

js/src/jit-test/tests/basic/testBug736807.js

@@ -0,0 +1,12 @@
+function f() {
+    newGlobal('new-compartment').eval('\
+        try {\
+          gczeal(2,1); \
+          throw new Error();\
+        } catch (e) { \
+          gc(); \
+          assertEq("" + e, "Error"); \
+        } \
+    ');
+}
+f({}, [1,2,4,5,6,7,8,1], new RegExp(), function() {});

js/src/jsexn.cpp

@@ -292,8 +292,8 @@ struct SuppressErrorsGuard
 
 struct AppendWrappedArg {
     JSContext *cx;
-    Vector<Value> &values;
-    AppendWrappedArg(JSContext *cx, Vector<Value> &values)
+    AutoValueVector &values;
+    AppendWrappedArg(JSContext *cx, AutoValueVector &values)
       : cx(cx),
         values(values)
     {}
@@ -342,7 +342,7 @@ InitExnPrivate(JSContext *cx, JSObject *exnObject, JSString *message,
     JSCheckAccessOp checkAccess = cx->runtime->securityCallbacks->checkObjectAccess;
 
     Vector<JSStackTraceStackElem> frames(cx);
-    Vector<Value> values(cx);
+    AutoValueVector values(cx);
     {
         SuppressErrorsGuard seg(cx);
         for (FrameRegsIter i(cx); !i.done(); ++i) {