[strong] Check arity of functions

src/hydrogen.cc

Index: src/hydrogen.cc
diff --git a/src/hydrogen.cc b/src/hydrogen.cc
index 77890f6fbf8f3aca926641450cbe885d14277ecd..dcecb89e22f8634236f1d32c7acff57f297ae4d8 100644
--- a/src/hydrogen.cc
+++ b/src/hydrogen.cc
@@ -8123,6 +8123,15 @@ bool HOptimizedGraphBuilder::TryInline(Handle<JSFunction> target,
     return false;
   }
 
+  // In strong mode it is an error to call a function with too few arguments.
+  // In that case do not inline because then the arity check would be skipped.
+  if (is_strong(function->language_mode()) &&
+      arguments_count < function->parameter_count()) {
+    TraceInline(target, caller,
+                "too few arguments passed to a strong function");
+    return false;
+  }
+
   // ----------------------------------------------------------------
   // After this point, we've made a decision to inline this function (so
   // TryInline should always return true).