Update almost all tests (except co19) to use the new try-catch syntax.

tests/corelib/big_integer_vm_test.dart

 // Copyright (c) 2011, 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.
 // Testing Bigints.
 // TODO(srdjan): Make sure the numbers are Bigint and not Mint or Smi.
 
 #library("BigIntegerTest.dart");
 #import("dart:coreimpl");
 
 class BigIntegerTest {
@@ skipping 125 matching lines @@
     Expect.equals(0, a & b);
     Expect.equals(-1, a | b);
   }
 
   static testShiftAmount() {
     Expect.equals(0, 12 >> 111111111111111111111111111111);
     Expect.equals(-1, -12 >> 111111111111111111111111111111);
     bool exceptionCaught = false;
     try {
       var a = 1 << 1111111111111111111111111111;
-    } catch (OutOfMemoryException e) {
+    } on OutOfMemoryException catch (e) {
       exceptionCaught = true;
     }
     Expect.equals(true, exceptionCaught);
   }
 
   static testMain() {
     Expect.equals(1234567890123456789, foo());
     testSmiOverflow();
     testBigintAdd();
     testBigintSub();
@@ skipping 10 matching lines @@
     checkBigint(a);
     checkBigint(b);
     Expect.equals(false, a.hashCode() == b.hashCode());
     Expect.equals(true, a.hashCode() == (b - 1).hashCode());
   }
 }
 
 main() {
   BigIntegerTest.testMain();
 }