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

runtime/vm/object.h

Index: runtime/vm/object.h
===================================================================
--- runtime/vm/object.h	(revision 42443)
+++ runtime/vm/object.h	(working copy)
@@ -3960,6 +3960,23 @@
   const Comments& comments() const;
   void set_comments(const Comments& comments) const;
 
+  enum InlinedIntervalEntries {
+    kInlIntStart = 0,
+    kInlIntEnd = 1,
+    kInlIntFunction = 2,
+    kInlIntNumEntries = 3
+  };
+
+  RawArray* inlined_intervals() const {
+    return raw_ptr()->inlined_intervals_;
+  }
+  void set_inlined_intervals(const Array& value) const;
+
+  void GetInlinedFunctionsAt(
+      intptr_t offset, GrowableArray<Function*>* fs) const;
+
+  void DumpInlinedIntervals() const;
+
   RawLocalVarDescriptors* var_descriptors() const {
     return raw_ptr()->var_descriptors_;
   }