Make the "sticky error" an Error instead of a String.

runtime/vm/allocation_test.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "platform/assert.h"
 #include "vm/allocation.h"
 #include "vm/longjump.h"
 #include "vm/unit_test.h"
 
 namespace dart {
@@ skipping 70 matching lines @@
   int data = 1;
   StackAllocatedDestructionHelper(&data);
   EXPECT_EQ(4, data);
 }
 
 
 static void StackAllocatedLongJumpHelper(int* ptr, LongJump* jump) {
   TestValueObject stacked(ptr);
   EXPECT_EQ(2, *ptr);
   *ptr = 3;
-  jump->Jump(1, "StackAllocatedLongJump Test");
+  const Error& error =
+      Error::Handle(LanguageError::New(
+          String::Handle(String::New("StackAllocatedLongJump"))));
+  jump->Jump(1, error);
   UNREACHABLE();
 }
 
 
 TEST_CASE(StackAllocatedLongJump) {
   LongJump jump;
   int data = 1;
   if (setjmp(*jump.Set()) == 0) {
     StackAllocatedLongJumpHelper(&data, &jump);
     UNREACHABLE();
@@ skipping 23 matching lines @@
   int data = 1;
   StackResourceDestructionHelper(&data);
   EXPECT_EQ(7, data);
 }
 
 
 static void StackedStackResourceLongJumpHelper(int* ptr, LongJump* jump) {
   TestStackedStackResource stacked(ptr);
   EXPECT_EQ(4, *ptr);
   *ptr = 5;
-  jump->Jump(1, "StackResourceLongJump Test");
+  const Error& error =
+      Error::Handle(LanguageError::New(
+          String::Handle(String::New("StackedStackResourceLongJump"))));
+  jump->Jump(1, error);
   UNREACHABLE();
 }
 
 
 static void StackResourceLongJumpHelper(int* ptr, LongJump* jump) {
   TestStackResource stacked(ptr);
   EXPECT_EQ(2, *ptr);
   *ptr = 3;
   StackedStackResourceLongJumpHelper(ptr, jump);
   UNREACHABLE();
 }
 
 
 TEST_CASE(StackResourceLongJump) {
   LongJump jump;
   int data = 1;
   if (setjmp(*jump.Set()) == 0) {
     StackResourceLongJumpHelper(&data, &jump);
     UNREACHABLE();
   }
   EXPECT_EQ(7, data);
 }
 
 }  // namespace dart