[strong] Refactor out separate strong runtime call for class objects

src/full-codegen/ppc/full-codegen-ppc.cc

Index: src/full-codegen/ppc/full-codegen-ppc.cc
diff --git a/src/full-codegen/ppc/full-codegen-ppc.cc b/src/full-codegen/ppc/full-codegen-ppc.cc
index 6ddf6c6a02c8fa42293c5ec239a824346c515b65..e20f36719af48f4b565017b14ff5f53313900bbd 100644
--- a/src/full-codegen/ppc/full-codegen-ppc.cc
+++ b/src/full-codegen/ppc/full-codegen-ppc.cc
@@ -2575,10 +2575,7 @@ void FullCodeGenerator::EmitClassDefineProperties(ClassLiteral* lit,
 
   // Set both the prototype and constructor to have fast properties, and also
   // freeze them in strong mode.
-  __ CallRuntime(is_strong(language_mode())
-                     ? Runtime::kFinalizeClassDefinitionStrong
-                     : Runtime::kFinalizeClassDefinition,
-                 2);
+  __ CallRuntime(Runtime::kFinalizeClassDefinition, 2);
 }