Revert "[kernel] Stream everything. Replace .kernel_function with .kernel_offset"

runtime/vm/class_finalizer.cc

 // 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.
 
 #include "vm/class_finalizer.h"
 
 #include "vm/flags.h"
 #include "vm/hash_table.h"
 #include "vm/heap.h"
 #include "vm/isolate.h"
@@ skipping 1613 matching lines @@
           const Function& getter = Function::Handle(
               zone, Function::New(
                         getter_name, RawFunction::kImplicitStaticFinalGetter,
                         /* is_static = */ true,
                         /* is_const = */ field.is_const(),
                         /* is_abstract = */ false,
                         /* is_external = */ false,
                         /* is_native = */ false, cls, field.token_pos()));
           getter.set_result_type(type);
           getter.set_is_debuggable(false);
-          getter.set_kernel_offset(field.kernel_offset());
+          getter.set_kernel_function(field.kernel_field());
           cls.AddFunction(getter);
           field.SetStaticValue(Object::sentinel(), true);
         }
       }
     }
   }
   // If we check for bad overrides, collect interfaces, super interfaces, and
   // super classes of this class.
   GrowableArray<const Class*> interfaces(zone, 4);
   if (Isolate::Current()->error_on_bad_override()) {
@@ skipping 737 matching lines @@
   // But the Kernel frontend will generate mixin classes with only
   // constructors inside them, which forward to the base class constructors.
   //
   // => We generate the constructors if they are not already there.
   functions = cls.functions();
   if (functions.Length() == 0) {
     CreateForwardingConstructors(cls, mixin_cls, cloned_funcs);
   } else {
     for (intptr_t i = 0; i < functions.Length(); i++) {
       func ^= functions.At(i);
-      ASSERT(func.kernel_offset() > 0);
+      ASSERT(func.kernel_function() != 0);
       cloned_funcs.Add(func);
     }
   }
 
   // Now clone the functions from the mixin class.
   functions = mixin_cls.functions();
   const intptr_t num_functions = functions.Length();
   for (intptr_t i = 0; i < num_functions; i++) {
     func ^= functions.At(i);
     if (func.IsGenerativeConstructor()) {
@@ skipping 1397 matching lines @@
   ProgramVisitor::VisitFunctions(&function_visitor);
 
   class ClearCodeClassVisitor : public ClassVisitor {
     void Visit(const Class& cls) { cls.DisableAllocationStub(); }
   };
   ClearCodeClassVisitor class_visitor;
   ProgramVisitor::VisitClasses(&class_visitor);
 }
 
 }  // namespace dart