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

tests/language/bit_operations_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.
 // Dart test for testing bitwise operations.
 
 class BitOperationsTest {
   static testMain() {
     for (int i = 0; i < 4; i++) {
       testOne();
     }
@@ skipping 40 matching lines @@
     Expect.equals(0xF00000000, 15 << 32);
 
     TestNegativeValueShifts();
     TestPositiveValueShifts();
     TestNoMaskingOfShiftCount();
     TestNegativeCountShifts();
     for (int i = 0; i < 1000; i++) {
       TestCornerCasesLeftShifts();
     }
   }
-  
+
   static void TestCornerCasesLeftShifts() {
     var v32 = 0xFF000000;
     var v64 = 0xFF00000000000000;
     Expect.equals(0x3, v32 >> 0x1E);
     Expect.equals(0x1, v32 >> 0x1F);
     Expect.equals(0x0, v32 >> 0x20);
     Expect.equals(0x3, v64 >> 0x3E);
     Expect.equals(0x1, v64 >> 0x3F);
     Expect.equals(0x0, v64 >> 0x40);
   }
-  
+
   static void TestNegativeCountShifts() {
     bool throwOnLeft(a, b) {
       try {
         var x = a << b;
         return false;
-      } catch(var e) {
+      } catch (e) {
         return true;
       }
     }
-    
+
     bool throwOnRight(a, b) {
       try {
         var x = a >> b;
         return false;
-      } catch(var e) {
+      } catch (e) {
         return true;
       }
     }
-  
+
     Expect.isTrue(throwOnLeft(12, -3));
     Expect.isTrue(throwOnRight(12, -3));
     for (int i = 0; i < 4000; i++) {
       Expect.isFalse(throwOnLeft(12, 3));
       Expect.isFalse(throwOnRight(12, 3));
     }
   }
 
   static void TestNegativeValueShifts() {
     for (int value = 0; value > -100; value--) {
@@ skipping 30 matching lines @@
     }
   }
 
   static int ShiftLeft(int a, int b) { return a << b; }
   static int ShiftRight(int a, int b) { return a >> b; }
 }
 
 main() {
   BitOperationsTest.testMain();
 }