Allow #[] and #[]= symbols.

tests/corelib/symbol_operator_test.dart

 // Copyright (c) 2013, 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.
 
 // Test of Symbol class for operators..
 
 var $ = new Symbolize();
 
 main() {
   testSymbol(#+, $+$, "+");
   testSymbol(#-, $-$, "-");
   testSymbol(#*, $*$, "*");
   testSymbol(#/, $/$, "/");
   testSymbol(#~/, $~/$, "~/");
   testSymbol(#%, $%$, "%");
   testSymbol(#<<, $<<$, "<<");
   testSymbol(#>>, $>>$, ">>");
   testSymbol(#~, ~$, "~");
   testSymbol(#|, $|$, "|");
   testSymbol(#&, $&$, "&");
   testSymbol(#^, $^$, "^");
   testSymbol(#<, $<$, "<");
   testSymbol(#<=, $<=$, "<=");
   testSymbol(#>, $>$, ">");
   testSymbol(#>=, $>=$, ">=");
   testSymbol(#==, new Symbol("=="), "==");  // Can't hit noSuchMethod.
-  testSymbol(#[], $[$], "[]");                      /// 01: ok
-  testSymbol(#[]=, ($[$]=$).lastMember, "[]=");     /// 02: ok
+  testSymbol(#[], $[$], "[]");
+  testSymbol(#[]=, ($[$]=$).lastMember, "[]=");
   testSymbol(const Symbol("unary-"), -$, "unary-");
 
   testSymbolThrows(">>>");  /// 03: ok
   testSymbolThrows("!");    /// 03: continued
   testSymbolThrows("&&");   /// 03: continued
   testSymbolThrows("||");   /// 03: continued
   testSymbolThrows("?");    /// 03: continued
   testSymbolThrows("?:");   /// 03: continued
   testSymbolThrows("#");    /// 03: continued
   testSymbolThrows("//");   /// 03: continued
@@ skipping 33 matching lines @@
   }
   if (!fails) {
     throw "Didn't throw: $name";
   }
 }
 
 class Symbolize {
   Symbol lastMember;
   noSuchMethod(m) => lastMember = m.memberName;
 }