Tweak corelib files so dartfmt can do a better job. Use // comments to force line wrapping for long…

sdk/lib/internal/internal.dart

 // 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.
 
 library dart._internal;
 
 import 'dart:collection';
 
 import 'dart:core' hide Symbol;
 import 'dart:core' as core;
 import 'dart:math' show Random;
 
 part 'iterable.dart';
 part 'list.dart';
 part 'print.dart';
 part 'sort.dart';
 part 'symbol.dart';
 
 // Powers of 10 up to 10^22 are representable as doubles.
 // Powers of 10 above that are only approximate due to lack of precission.
 // Used by double-parsing.
 const POWERS_OF_TEN = const [
-                        1.0,  /*  0 */
-                       10.0,
-                      100.0,
-                     1000.0,
-                    10000.0,
-                   100000.0,  /*  5 */
-                  1000000.0,
-                 10000000.0,
-                100000000.0,
-               1000000000.0,
-              10000000000.0,  /* 10 */
-             100000000000.0,
-            1000000000000.0,
-           10000000000000.0,
-          100000000000000.0,
-         1000000000000000.0,  /*  15 */
-        10000000000000000.0,
-       100000000000000000.0,
-      1000000000000000000.0,
-     10000000000000000000.0,
-    100000000000000000000.0,  /*  20 */
-   1000000000000000000000.0,
+  1.0, // 0
+  10.0,
+  100.0,
+  1000.0,
+  10000.0,
+  100000.0, // 5
+  1000000.0,
+  10000000.0,
+  100000000.0,
+  1000000000.0,
+  10000000000.0, // 10
+  100000000000.0,
+  1000000000000.0,
+  10000000000000.0,
+  100000000000000.0,
+  1000000000000000.0, // 15
+  10000000000000000.0,
+  100000000000000000.0,
+  1000000000000000000.0,
+  10000000000000000000.0,
+  100000000000000000000.0, // 20
+  1000000000000000000000.0,
   10000000000000000000000.0,
 ];
 
 /**
  * An [Iterable] of the UTF-16 code units of a [String] in index order.
  */
 class CodeUnits extends UnmodifiableListBase<int> {
   /** The string that this is the code units of. */
   final String _string;
 
   CodeUnits(this._string);
 
   int get length => _string.length;
-  int operator[](int i) => _string.codeUnitAt(i);
+  int operator [](int i) => _string.codeUnitAt(i);
 
   static String stringOf(CodeUnits u) => u._string;
 }
 
 /// Marks a function as an external implementation ("native" in the Dart VM).
 ///
 /// Provides a backend-specific String that can be used to identify the
 /// function's implementation.
 class ExternalName {
   final String name;
@@ skipping 19 matching lines @@
 
 /// Parses two hex digits in a string.
 ///
 /// Returns a negative value if either digit isn't valid.
 int parseHexByte(String source, int index) {
   assert(index + 2 <= source.length);
   int digit1 = hexDigitValue(source.codeUnitAt(index));
   int digit2 = hexDigitValue(source.codeUnitAt(index + 1));
   return digit1 * 16 + digit2 - (digit2 & 256);
 }