dart2dart properly collect top level fields

tests/compiler/dart2js/unparser_test.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.
 
 #import('dart:uri');
 #import('parser_helper.dart');
 #import("../../../lib/compiler/compiler.dart");
 #import("../../../lib/compiler/implementation/tree/tree.dart");
 
 testUnparse(String statement) {
@@ skipping 209 matching lines @@
 }
 
 testConflictSendsRename() {
   // Various Send-s to current library and external library. Verify that
   // everything is renamed correctly in conflicting class names and global
   // functions.
   var librarySrc = '''
 #library("mylib.dart");
 
 globalfoo() {}
+var globalVar;

[Anton Muhin, 2012/08/16 11:05:48]

just for fun, let's try variable lists, something (if everything is allowed)
like:

var var0 = 0, var1, var2 = 2;

[Roman, 2012/08/16 11:46:09]

Done.

+var globalVarInitialized = 6;
 
 class A {
   A(){}
   A.fromFoo(){}
   static staticfoo(){}
   foo(){}
   static final field = 5;
 }
 ''';
   var mainSrc = '''
 #import("mylib.dart", prefix: "mylib");
 
 globalfoo() {}
+var globalVar;
+var globalVarInitialized = 6;
 
 class A {
   A(){}
   A.fromFoo(){}
   static staticfoo(){}
   foo(){}
   static final field = 5;
 }
 
 main() {
+  globalVar;
+  globalVarInitialized;
   globalfoo();
   A.field;
   A.staticfoo();
   new A();
   new A.fromFoo();
   new A().foo();
 
+  mylib.globalVar;
+  mylib.globalVarInitialized;
   mylib.globalfoo();
   mylib.A.field;
   mylib.A.staticfoo();
   new mylib.A();
   new mylib.A.fromFoo();
   new mylib.A().foo();
 }
 ''';
-  var expectedResult = 'globalfoo(){}p_globalfoo(){}main(){p_globalfoo(); p_A.field; p_A.staticfoo(); new p_A(); new p_A.fromFoo(); new p_A().foo(); globalfoo(); A.field; A.staticfoo(); new A(); new A.fromFoo(); new A().foo();}class p_A{p_A(){}p_A.fromFoo(){}foo(){}static staticfoo(){}static final field=5;}class A{A(){}A.fromFoo(){}foo(){}static staticfoo(){}static final field=5;}';
+  var expectedResult = 'globalfoo(){}p_globalfoo(){}main(){globalVar; globalVarInitialized; p_globalfoo(); A.field; A.staticfoo(); new A(); new A.fromFoo(); new A().foo(); p_globalVar; p_globalVarInitialized; globalfoo(); p_A.field; p_A.staticfoo(); new p_A(); new p_A.fromFoo(); new p_A().foo();}var globalVar;var p_globalVar;var globalVarInitialized=6;var p_globalVarInitialized=6;class A{A(){}A.fromFoo(){}foo(){}static staticfoo(){}static final field=5;}class p_A{p_A(){}p_A.fromFoo(){}foo(){}static staticfoo(){}static final field=5;}';
   testDart2DartWithLibrary(mainSrc, librarySrc,
       (String result) { Expect.equals(expectedResult, result); });
 }
 
 testNoConflictSendsRename() {
   // Various Send-s to current library and external library. Nothing should be
   // renamed here, only library prefixes must be cut.
   var librarySrc = '''
 #library("mylib.dart");
 
@@ skipping 128 matching lines @@
   testGetSet();
   testFactoryConstructor();
   testAbstractClass();
   testConflictSendsRename();
   testNoConflictSendsRename();
   testConflictLibraryClassRename();
   testDefaultClassWithArgs();
   testClassExtendsWithArgs();
   testStaticInvocation();
 }