Introduce CodeSourceMap object to hold pc -> token position mappings

runtime/vm/raw_object.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/raw_object.h"
 
 #include "vm/class_table.h"
 #include "vm/dart.h"
 #include "vm/freelist.h"
 #include "vm/isolate.h"
@@ skipping 126 matching lines @@
       instance_size = TypeArguments::InstanceSize(array_length);
       break;
     }
     case kPcDescriptorsCid: {
       const RawPcDescriptors* raw_descriptors =
           reinterpret_cast<const RawPcDescriptors*>(this);
       intptr_t length = raw_descriptors->ptr()->length_;
       instance_size = PcDescriptors::InstanceSize(length);
       break;
     }
+    case kCodeSourceMapCid: {
+      const RawCodeSourceMap* raw_code_source_map =
+          reinterpret_cast<const RawCodeSourceMap*>(this);
+      intptr_t length = raw_code_source_map->ptr()->length_;
+      instance_size = CodeSourceMap::InstanceSize(length);
+      break;
+    }
     case kStackmapCid: {
       const RawStackmap* map = reinterpret_cast<const RawStackmap*>(this);
       intptr_t length = map->ptr()->length_;
       instance_size = Stackmap::InstanceSize(length);
       break;
     }
     case kLocalVarDescriptorsCid: {
       const RawLocalVarDescriptors* raw_descriptors =
           reinterpret_cast<const RawLocalVarDescriptors*>(this);
       intptr_t num_descriptors = raw_descriptors->ptr()->num_entries_;
@@ skipping 425 matching lines @@
   return (pc >= start_pc) && (pc < end_pc);
 }
 
 
 intptr_t RawPcDescriptors::VisitPcDescriptorsPointers(
     RawPcDescriptors* raw_obj, ObjectPointerVisitor* visitor) {
   return PcDescriptors::InstanceSize(raw_obj->ptr()->length_);
 }
 
 
+intptr_t RawCodeSourceMap::VisitCodeSourceMapPointers(
+    RawCodeSourceMap* raw_obj, ObjectPointerVisitor* visitor) {
+  return CodeSourceMap::InstanceSize(raw_obj->ptr()->length_);
+}
+
+
 intptr_t RawStackmap::VisitStackmapPointers(RawStackmap* raw_obj,
                                             ObjectPointerVisitor* visitor) {
   return Stackmap::InstanceSize(raw_obj->ptr()->length_);
 }
 
 
 intptr_t RawLocalVarDescriptors::VisitLocalVarDescriptorsPointers(
     RawLocalVarDescriptors* raw_obj, ObjectPointerVisitor* visitor) {
   intptr_t num_entries = raw_obj->ptr()->num_entries_;
   visitor->VisitPointers(raw_obj->from(), raw_obj->to(num_entries));
@@ skipping 346 matching lines @@
 intptr_t RawUserTag::VisitUserTagPointers(
     RawUserTag* raw_obj, ObjectPointerVisitor* visitor) {
   // Make sure that we got here with the tagged pointer as this.
   ASSERT(raw_obj->IsHeapObject());
   visitor->VisitPointers(raw_obj->from(), raw_obj->to());
   return UserTag::InstanceSize();
 }
 
 
 }  // namespace dart