Add inlining ranges/intervals to code objects so that we can map a pc to the inlined stack. The map…

runtime/vm/intermediate_language.h

Index: runtime/vm/intermediate_language.h
===================================================================
--- runtime/vm/intermediate_language.h	(revision 42443)
+++ runtime/vm/intermediate_language.h	(working copy)
@@ -611,6 +611,7 @@
         next_(NULL),
         env_(NULL),
         locs_(NULL),
+        inlining_id_(-1),
         place_id_(kNoPlaceId) { }
 
   virtual ~Instruction() { }
@@ -815,6 +816,13 @@
   void set_place_id(intptr_t place_id) { place_id_ = place_id; }
   bool HasPlaceId() const { return place_id_ != kNoPlaceId; }
 
+  intptr_t inlining_id() const { return inlining_id_; }
+  void set_inlining_id(intptr_t value) {
+    ASSERT(value >= 0);
+    inlining_id_ = value;
+  }
+  bool has_inlining_id() const { return inlining_id_ >= 0; }
+
   // Returns a hash code for use with hash maps.
   virtual intptr_t Hashcode() const;
 
@@ -882,6 +890,7 @@
   Instruction* next_;
   Environment* env_;
   LocationSummary* locs_;
+  intptr_t inlining_id_;
   intptr_t place_id_;
 
   DISALLOW_COPY_AND_ASSIGN(Instruction);