[api] Throw in defineProperty() when necessary.

src/messages.h

Index: src/messages.h
diff --git a/src/messages.h b/src/messages.h
index b3f8a1d5e154191ce141fd9a4e06f037679fa70d..6ceb5eb223cc168d422018479dcb1b11f80bd2d5 100644
--- a/src/messages.h
+++ b/src/messages.h
@@ -261,6 +261,8 @@ class ErrorUtils : public AllStatic {
   T(DebuggerType, "Debugger: Parameters have wrong types.")                    \
   T(DeclarationMissingInitializer, "Missing initializer in % declaration")     \
   T(DefineDisallowed, "Cannot define property:%, object is not extensible.")   \
+  T(DefineDisallowedWithNonDataDescriptor,                                     \
+    "Cannot define property '%', descriptor is not a data descriptor.")        \
   T(DetachedOperation, "Cannot perform % on a detached ArrayBuffer")           \
   T(DuplicateTemplateProperty, "Object template has duplicate property '%'")   \
   T(ExtendsValueNotConstructor,                                                \