[es6] Throw TypeError for computed static prototype property name

src/x64/full-codegen-x64.cc

Index: src/x64/full-codegen-x64.cc
diff --git a/src/x64/full-codegen-x64.cc b/src/x64/full-codegen-x64.cc
index d553fb84c2761686a317b8d2409bd71d657946b0..2c1146c90a0999f673f9bc26e70abb21d1b96e6c 100644
--- a/src/x64/full-codegen-x64.cc
+++ b/src/x64/full-codegen-x64.cc
@@ -2495,6 +2495,16 @@ void FullCodeGenerator::EmitClassDefineProperties(ClassLiteral* lit) {
       __ Push(Operand(rsp, 0));  // prototype
     }
     EmitPropertyKey(property, lit->GetIdForProperty(i));
+
+    // The static prototype property is read only. We handle the non computed
+    // property name case in the parser. Since this is the only case where we
+    // need to check for an own read only property we special case this so we do
+    // not need to do this for every property.
+    if (property->is_static() && property->is_computed_name()) {
+      __ CallRuntime(Runtime::kThrowIfStaticPrototype, 1);
+      __ Push(rax);
+    }
+
     VisitForStackValue(value);
     EmitSetHomeObjectIfNeeded(value, 2);