[turbofan] Osr value typing + dynamic type checks on entry.

src/compiler/node-properties.cc

Index: src/compiler/node-properties.cc
diff --git a/src/compiler/node-properties.cc b/src/compiler/node-properties.cc
index 22539cbfb4201c99b9b2b9d286910c86d22a8d78..82bcef280c8b206dc3d38bb7d3434e8749bdd43e 100644
--- a/src/compiler/node-properties.cc
+++ b/src/compiler/node-properties.cc
@@ -369,7 +369,7 @@ MaybeHandle<Context> NodeProperties::GetSpecializationNativeContext(
         return handle(context->native_context());
       }
       case IrOpcode::kOsrValue: {
-        int const index = OpParameter<int>(node);
+        int const index = OsrValueIndexOf(node->op());
         if (index == Linkage::kOsrContextSpillSlotIndex) {
           return native_context;
         }