Revert trunk to version 3.16.4.

test/mjsunit/eval-stack-trace.js

Index: test/mjsunit/eval-stack-trace.js
diff --git a/test/mjsunit/eval-stack-trace.js b/test/mjsunit/eval-stack-trace.js
index d83b84c16f283cf6710be54960be13848d957e71..723d522c788616696ea1221addcccd35c187df4b 100644
--- a/test/mjsunit/eval-stack-trace.js
+++ b/test/mjsunit/eval-stack-trace.js
@@ -26,13 +26,12 @@
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 // Return the stack frames of an Error object.
-
-Error.prepareStackTrace = function(error, frames) {
-  return frames;
-}
-
 Error.prototype.getFrames = function() {
+  Error.prepareStackTrace = function(error, frames) {
+    return frames;
+  }
   var frames = this.stack;
+  Error.prepareStackTrace = undefined;
   return frames;
 }