Revert r13188, r13194, r13256 (Deferred formatting of error stack trace during GC).

test/mjsunit/stack-traces.js

Index: test/mjsunit/stack-traces.js
diff --git a/test/mjsunit/stack-traces.js b/test/mjsunit/stack-traces.js
index b5d58fa0759f3086bce84d139824114d0b80d505..438eec979d1766ed831a45c594bc29b8e9beab7a 100644
--- a/test/mjsunit/stack-traces.js
+++ b/test/mjsunit/stack-traces.js
@@ -288,42 +288,4 @@ testOmittedBuiltin(function(){ [thrower, 2].sort(function (a,b) {
                    }, "QuickSort");
 
 // Omitted because ADD from runtime.js is non-native builtin.
-testOmittedBuiltin(function(){ thrower + 2; }, "ADD");
-
-var error = new Error();
-error.toString = function() { assertUnreachable(); };
-error.stack;
-
-error = new Error();
-error.name = { toString: function() { assertUnreachable(); }};
-error.message = { toString: function() {  assertUnreachable(); }};
-error.stack;
-
-error = new Error();
-Array.prototype.push = function(x) { assertUnreachable(); };
-Array.prototype.join = function(x) { assertUnreachable(); };
-error.stack;
-
-var fired = false;
-error = new Error({ toString: function() { fired = true; } });
-assertTrue(fired);
-error.stack;
-assertTrue(fired);
-
-// Check that throwing exception in a custom stack trace formatting function
-// does not lead to recursion.
-Error.prepareStackTrace = function() { throw new Error("abc"); };
-var message;
-try {
-  throw new Error();
-} catch (e) {
-  message = e.message;
-}
-
-assertEquals("abc", message);
-
-// Test that modifying Error.prepareStackTrace by itself works.
-Error.prepareStackTrace = function() { Error.prepareStackTrace = "custom"; };
-new Error();
-
-assertEquals("custom", Error.prepareStackTrace);
+testOmittedBuiltin(function(){ thrower + 2; }, "ADD");