[interpreter] Compute and use type info percentage

src/runtime-profiler.h

Index: src/runtime-profiler.h
diff --git a/src/runtime-profiler.h b/src/runtime-profiler.h
index 7f2c9024bf10f3cbd21eba3fff5ab77d0d0a1005..5c538c488cfd8c9729300a7989390a5a474f1341 100644
--- a/src/runtime-profiler.h
+++ b/src/runtime-profiler.h
@@ -13,6 +13,7 @@ namespace internal {
 class Isolate;
 class JavaScriptFrame;
 class JSFunction;
+enum class OptimizationReason : uint8_t;
 
 class RuntimeProfiler {
  public:
@@ -30,8 +31,13 @@ class RuntimeProfiler {
                                 int frame_count);
   void MaybeBaselineIgnition(JSFunction* function, JavaScriptFrame* frame);
   void MaybeOptimizeIgnition(JSFunction* function, JavaScriptFrame* frame);
-  void Optimize(JSFunction* function, const char* reason);
-  void Baseline(JSFunction* function, const char* reason);
+  // Potentially attempts OSR from ignition and returns whether no other
+  // optimization attempts should be made.
+  bool MaybeOSRIgnition(JSFunction* function, JavaScriptFrame* frame);
+  OptimizationReason ShouldOptimizeIgnition(JSFunction* function,
+                                            JavaScriptFrame* frame);
+  void Optimize(JSFunction* function, OptimizationReason reason);
+  void Baseline(JSFunction* function, OptimizationReason reason);
 
   Isolate* isolate_;
   bool any_ic_changed_;