vector-based ICs did not update type feedback counts correctly.

src/x64/code-stubs-x64.cc

Index: src/x64/code-stubs-x64.cc
diff --git a/src/x64/code-stubs-x64.cc b/src/x64/code-stubs-x64.cc
index 7d1e4f5e0d0f9d416c682b47ec680599acdfb7e1..e8f11bb3d606a58d4427bbc2d6923b7c9ef42c72 100644
--- a/src/x64/code-stubs-x64.cc
+++ b/src/x64/code-stubs-x64.cc
@@ -2117,6 +2117,13 @@ void CallICStub::Generate(MacroAssembler* masm) {
     __ j(not_equal, &miss);
     __ Move(FieldOperand(rbx, rdx, times_pointer_size, FixedArray::kHeaderSize),
             TypeFeedbackVector::MegamorphicSentinel(isolate));
+    // We have to update statistics for runtime profiling.
+    const int with_types_offset =
+        FixedArray::OffsetOfElementAt(TypeFeedbackVector::kWithTypesIndex);
+    __ SmiAddConstant(FieldOperand(rbx, with_types_offset), Smi::FromInt(-1));
+    const int generic_offset =
+        FixedArray::OffsetOfElementAt(TypeFeedbackVector::kGenericCountIndex);
+    __ SmiAddConstant(FieldOperand(rbx, generic_offset), Smi::FromInt(1));
     __ jmp(&slow_start);
   }