Add class id constants fields to dart:_internal class 'ClassID'. Use the fields in the library (mor…

runtime/vm/symbols.h

Index: runtime/vm/symbols.h
===================================================================
--- runtime/vm/symbols.h	(revision 37613)
+++ runtime/vm/symbols.h	(working copy)
@@ -316,13 +316,13 @@
   V(_leftShiftWithMask32, "_leftShiftWithMask32")                              \
   V(OptimizedOut, "<optimized out>")                                           \
   V(NotInitialized, "<not initialized>")                                       \
-  V(ClassId, "get:_classId")                                                   \

[Florian Schneider, 2014/06/24 09:38:59]

Another example of a change that changes the snapshot format, but unsurprisingly
did not require regenerating the binary snapshot test that's supposed to
indicate changes in the snapshot format.

   V(AllocationStubFor, "Allocation stub for ")                                 \
   V(TempParam, ":temp_param")                                                  \
   V(UserTag, "UserTag")                                                        \
   V(_UserTag, "_UserTag")                                                      \
   V(Default, "Default")                                                        \
   V(StubPrefix, "[Stub] ")                                                     \
+  V(ClassID, "ClassID")                                                        \
 
 
 // Contains a list of frequently used strings in a canonicalized form. This