Consolidate a few fields in RawFunction using bitfields.

runtime/vm/compiler.cc

 // 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.
 
 #include "vm/compiler.h"
 
 #include "vm/assembler.h"
 #include "vm/ast_printer.h"
 #include "vm/code_generator.h"
 #include "vm/code_patcher.h"
@@ skipping 401 matching lines @@
 }
 
 
 RawError* Compiler::CompileAllFunctions(const Class& cls) {
   Error& error = Error::Handle();
   Array& functions = Array::Handle(cls.functions());
   Function& func = Function::Handle();
   for (int i = 0; i < functions.Length(); i++) {
     func ^= functions.At(i);
     ASSERT(!func.IsNull());
-    if (!func.HasCode() && !func.IsAbstract()) {
+    if (!func.HasCode() && !func.is_abstract()) {
       error = CompileFunction(func);
       if (!error.IsNull()) {
         return error.raw();
       }
     }
   }
   return error.raw();
 }
 
 
 RawObject* Compiler::ExecuteOnce(SequenceNode* fragment) {
   Isolate* isolate = Isolate::Current();
   LongJump* base = isolate->long_jump_base();
   LongJump jump;
   isolate->set_long_jump_base(&jump);
   if (setjmp(*jump.Set()) == 0) {
     if (FLAG_trace_compiler) {
       OS::Print("compiling expression: ");
       AstPrinter::PrintNode(fragment);
     }
 
     // Create a dummy function object for the code generator.
     const char* kEvalConst = "eval_const";
     const Function& func = Function::Handle(Function::New(
         String::Handle(Symbols::New(kEvalConst)),
         RawFunction::kConstImplicitGetter,
         true,  // static function.
         false,  // not const function.
+        false,  // not abstract
         false,  // not external.
         fragment->token_pos()));
 
     func.set_result_type(Type::Handle(Type::DynamicType()));
     func.set_num_fixed_parameters(0);
     func.set_num_optional_parameters(0);
 
     // The function needs to be associated with a named Class: the interface
     // Function fits the bill.
     func.set_owner(Class::Handle(
@@ skipping 27 matching lines @@
     isolate->object_store()->clear_sticky_error();
     isolate->set_long_jump_base(base);
     return result.raw();
   }
   UNREACHABLE();
   return Object::null();
 }
 
 
 }  // namespace dart