Start remove dependencies on compiler-related files.

runtime/vm/flow_graph_compiler.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/globals.h"  // Needed here to get TARGET_ARCH_XXX.
 
 #include "vm/flow_graph_compiler.h"
 
 #include "vm/bit_vector.h"
 #include "vm/cha.h"
@@ skipping 209 matching lines @@
       ICData& ic_data = ICData::ZoneHandle(zone());
       ic_data ^= old_saved_ic_data.At(i);
       (*deopt_id_to_ic_data_)[ic_data.deopt_id()] = &ic_data;
     }
   }
   ASSERT(assembler != NULL);
   ASSERT(!list_class_.IsNull());
 }
 
 
+bool FlowGraphCompiler::IsUnboxedField(const Field& field) {
+  bool valid_class = (SupportsUnboxedDoubles() &&
+                      (field.guarded_cid() == kDoubleCid)) ||
+                     (SupportsUnboxedSimd128() &&
+                      (field.guarded_cid() == kFloat32x4Cid)) ||
+                     (SupportsUnboxedSimd128() &&
+                      (field.guarded_cid() == kFloat64x2Cid));
+  return field.is_unboxing_candidate()
+      && !field.is_final()
+      && !field.is_nullable()
+      && valid_class;
+}
+
+
+bool FlowGraphCompiler::IsPotentialUnboxedField(const Field& field) {
+  return field.is_unboxing_candidate() &&
+         (FlowGraphCompiler::IsUnboxedField(field) ||
+          (!field.is_final() && (field.guarded_cid() == kIllegalCid)));
+}
+
+
 void FlowGraphCompiler::InitCompiler() {
   pc_descriptors_list_ = new(zone()) DescriptorList(64);
   exception_handlers_list_ = new(zone())ExceptionHandlerList();
   block_info_.Clear();
   // Conservative detection of leaf routines used to remove the stack check
   // on function entry.
   bool is_leaf = !parsed_function().function().IsClosureFunction()
       && is_optimizing()
       && !flow_graph().IsCompiledForOsr();
   // Initialize block info and search optimized (non-OSR) code for calls
@@ skipping 1580 matching lines @@
 
 
 void FlowGraphCompiler::FrameStateClear() {
   ASSERT(!is_optimizing());
   frame_state_.TruncateTo(0);
 }
 #endif
 
 
 }  // namespace dart