Finish implementing lazy deoptimization (ia32, x64). Ran tests with --deoptimize-alot.

runtime/vm/dart_api_impl.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 "include/dart_api.h"
 
 #include "vm/bigint_operations.h"
 #include "vm/class_finalizer.h"
 #include "vm/compiler.h"
 #include "vm/dart.h"
@@ skipping 3764 matching lines @@
   }
 }
 
 
 // Removes optimized code once we load more classes, since --use_cha based
 // optimizations may have become invalid.
 // TODO(srdjan): Note which functions use which CHA decision and deoptimize
 // only the necessary ones.
 static void RemoveOptimizedCode() {
   ASSERT(FLAG_use_cha);
+  // Deoptimize all live frames.
+  DeoptimizeAll();
+  // Switch all functions' code to unoptimized.
   const ClassTable& class_table = *Isolate::Current()->class_table();
   Class& cls = Class::Handle();
   Array& array = Array::Handle();
   Function& function = Function::Handle();
   const intptr_t num_cids = class_table.NumCids();
   for (intptr_t i = kInstanceCid; i < num_cids; i++) {
     if (!class_table.HasValidClassAt(i)) continue;
     cls = class_table.At(i);
     ASSERT(!cls.IsNull());
     array = cls.functions();
@@ skipping 386 matching lines @@
 DART_EXPORT void Dart_InitPerfEventsSupport(Dart_FileWriterFunction function) {
   Dart::set_perf_events_writer(function);
 }
 
 
 DART_EXPORT void Dart_InitFlowGraphPrinting(Dart_FileWriterFunction function) {
   Dart::set_flow_graph_writer(function);
 }
 
 }  // namespace dart