Count ICs that have type information.

src/compiler.h

Index: src/compiler.h
diff --git a/src/compiler.h b/src/compiler.h
index 44df9e090f1e17b4ac7ef59eb1356c8b2e0cde32..4ae66542b88820787908222efab3aae017dbdc7a 100644
--- a/src/compiler.h
+++ b/src/compiler.h
@@ -170,6 +170,9 @@ class CompilationInfo BASE_EMBEDDED {
   // current compilation pipeline.
   void AbortOptimization();
 
+  int number_of_ics() { return number_of_ics_; }
+  void increment_number_of_ics() { number_of_ics_++; }
+
  private:
   Isolate* isolate_;
 
@@ -184,7 +187,7 @@ class CompilationInfo BASE_EMBEDDED {
     NONOPT
   };
 
-  CompilationInfo() : function_(NULL) {}
+  CompilationInfo() : function_(NULL), number_of_ics_(0) {}
 
   void Initialize(Mode mode) {
     mode_ = V8::UseCrankshaft() ? mode : NONOPT;
@@ -254,6 +257,8 @@ class CompilationInfo BASE_EMBEDDED {
   Mode mode_;
   int osr_ast_id_;
 
+  int number_of_ics_;
+
   DISALLOW_COPY_AND_ASSIGN(CompilationInfo);
 };