dart2dart Preproces placeholders instead of renaming them lazily,

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 247 matching lines @@
   new A().foo();
 
   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(); A.field; A.staticfoo(); new A(); '
-          @'new A.fromFoo(); new A().foo(); globalfoo(); p_A.field; '
-          @'p_A.staticfoo(); new p_A(); new p_A.fromFoo(); new p_A().foo();}'
-      @'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;}';
+  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;}';
   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 79 matching lines @@
   a.foo();
   var b = new A.fromFoo();
   b.foo();
   var GREATVAR = b.myliba;
   b.mylist;
   a = getA();
   topfoo();
   mylib.topfoo();
 }
 ''';
-  var expectedResult = @'topfoo(){}p_topfoo(){var x=5;}A getA()=> null;'
-      @'main(){var a=new A(); a.foo(); var b=new p_A.fromFoo(); b.foo(); '
-          @'var GREATVAR=b.myliba; b.mylist; a=getA(); p_topfoo(); topfoo();}'
-      @'class p_A{p_A.fromFoo(){}List<p_A> mylist;num foo(){}A myliba;}'
-      @'class A{foo(){}}';
+  var expectedResult = 'topfoo(){}p_topfoo(){var x=5;}p_A getA()=> null;main(){var a=new p_A(); a.foo(); var b=new A.fromFoo(); b.foo(); var GREATVAR=b.myliba; b.mylist; a=getA(); p_topfoo(); topfoo();}class A{A.fromFoo(){}List<A> mylist;num foo(){}p_A myliba;}class p_A{foo(){}}';
   testDart2DartWithLibrary(mainSrc, librarySrc,
       (String result) { Expect.equals(expectedResult, result); });
 }
 
 testDefaultClassWithArgs() {
   testDart2Dart('main(){var result=new IA<String>();}'
       'interface IA<T> default A<T extends Object>{IA();}'
       'class A<T extends Object> implements IA<T>{factory A(){}}');
 }
 
@@ skipping 28 matching lines @@
   testGetSet();
   testFactoryConstructor();
   testAbstractClass();
   testConflictSendsRename();
   testNoConflictSendsRename();
   testConflictLibraryClassRename();
   testDefaultClassWithArgs();
   testClassExtendsWithArgs();
   testStaticInvocation();
 }