[compiler] Remove the special case "prototype" load in class literals.

src/full-codegen/ia32/full-codegen-ia32.cc

Index: src/full-codegen/ia32/full-codegen-ia32.cc
diff --git a/src/full-codegen/ia32/full-codegen-ia32.cc b/src/full-codegen/ia32/full-codegen-ia32.cc
index 2a70cfb7d77a4fdf40571b46d7dbc84eceb5fd7d..80da232dd29f2342241b446fcd3777e26fcd5c3e 100644
--- a/src/full-codegen/ia32/full-codegen-ia32.cc
+++ b/src/full-codegen/ia32/full-codegen-ia32.cc
@@ -2147,16 +2147,6 @@ void FullCodeGenerator::EmitInlineSmiBinaryOp(BinaryOperation* expr,
 
 
 void FullCodeGenerator::EmitClassDefineProperties(ClassLiteral* lit) {
-  // Constructor is in eax.
-  DCHECK(lit != NULL);
-  __ push(eax);
-
-  // No access check is needed here since the constructor is created by the
-  // class literal.
-  Register scratch = ebx;
-  __ mov(scratch, FieldOperand(eax, JSFunction::kPrototypeOrInitialMapOffset));
-  __ Push(scratch);
-
   for (int i = 0; i < lit->properties()->length(); i++) {
     ObjectLiteral::Property* property = lit->properties()->at(i);
     Expression* value = property->value();
@@ -2204,10 +2194,6 @@ void FullCodeGenerator::EmitClassDefineProperties(ClassLiteral* lit) {
         break;
     }
   }
-
-  // Set both the prototype and constructor to have fast properties, and also
-  // freeze them in strong mode.
-  __ CallRuntime(Runtime::kFinalizeClassDefinition);
 }