Hacky streaming of VariableGet

runtime/vm/kernel_to_il.cc

 // Copyright (c) 2016, 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 <map>
 #include <set>
 #include <string>
 
 #include "vm/kernel_to_il.h"
 
@@ skipping 2896 matching lines @@
 
 
 dart::LocalVariable* FlowGraphBuilder::LookupVariable(
     VariableDeclaration* var) {
   LocalVariable* local = scopes_->locals.Lookup(var->kernel_offset());
   ASSERT(local != NULL);
   return local;
 }
 
 
+dart::LocalVariable* FlowGraphBuilder::LookupVariable(intptr_t kernel_offset) {
+  LocalVariable* local = scopes_->locals.Lookup(kernel_offset);
+  ASSERT(local != NULL);
+  return local;
+}
+
+
 void FlowGraphBuilder::SetTempIndex(Definition* definition) {
   definition->set_temp_index(
       stack_ == NULL ? 0 : stack_->definition()->temp_index() + 1);
 }
 
 
 void FlowGraphBuilder::Push(Definition* definition) {
   SetTempIndex(definition);
   Value::AddToList(new (Z) Value(definition), &stack_);
 }
@@ skipping 1705 matching lines @@
     instructions += Constant(type);
   } else {
     instructions += LoadInstantiatorTypeArguments();
     instructions += InstantiateType(type);
   }
   fragment_ = instructions;
 }
 
 
 void FlowGraphBuilder::VisitVariableGet(VariableGet* node) {
-  fragment_ = LoadLocal(LookupVariable(node->variable()));
+  fragment_ = streaming_flow_graph_builder_->BuildAt(node->kernel_offset());
 }
 
 
 void FlowGraphBuilder::VisitVariableSet(VariableSet* node) {
   Fragment instructions = TranslateExpression(node->expression());
   if (NeedsDebugStepCheck(stack_, node->position())) {
     instructions = DebugStepCheck(node->position()) + instructions;
   }
   instructions += CheckVariableTypeInCheckedMode(node->variable());
   instructions +=
@@ skipping 1811 matching lines @@
     thread->clear_sticky_error();
     return error.raw();
   }
 }
 
 
 }  // namespace kernel
 }  // namespace dart
 
 #endif  // !defined(DART_PRECOMPILED_RUNTIME)