[llvm] [SampleFDO][TypeProf]Support vtable type profiling for ext-binary and text format (PR #148002)

[David Li via llvm-commits]

================
@@ -989,6 +1016,42 @@ class FunctionSamples {
     return CallsiteSamples;
   }
 
+  /// Return all the callsite type samples collected in the body of the
----------------
david-xl wrote:

nit : return vtable access samples for C++ types collected ..

https://github.com/llvm/llvm-project/pull/148002