Build fixes from portable changes

src/ProtocolBuffers/FieldAccess/ReflectionUtil.cs

@@ -136,7 +136,7 @@ namespace Google.ProtocolBuffers.FieldAccess
 
         internal static Func<TResult> CreateDelegateFunc<TResult>(MethodInfo method)
         {
-#if !NOCREATEDELEGATE
+#if !CF20
             object tdelegate = Delegate.CreateDelegate(typeof(Func<TResult>), null, method);
             return (Func<TResult>)tdelegate;
 #else
@@ -146,7 +146,7 @@ namespace Google.ProtocolBuffers.FieldAccess
 
         internal static Func<T, TResult> CreateDelegateFunc<T, TResult>(MethodInfo method)
         {
-#if !NOCREATEDELEGATE
+#if !CF20
             object tdelegate = Delegate.CreateDelegate(typeof(Func<T, TResult>), null, method);
             return (Func<T, TResult>)tdelegate;
 #else
@@ -160,7 +160,7 @@ namespace Google.ProtocolBuffers.FieldAccess
 
         internal static Func<T1, T2, TResult> CreateDelegateFunc<T1, T2, TResult>(MethodInfo method)
         {
-#if !NOCREATEDELEGATE
+#if !CF20
             object tdelegate = Delegate.CreateDelegate(typeof(Func<T1, T2, TResult>), null, method);
             return (Func<T1, T2, TResult>)tdelegate;
 #else
@@ -174,7 +174,7 @@ namespace Google.ProtocolBuffers.FieldAccess
 
         internal static Action<T1, T2> CreateDelegateAction<T1, T2>(MethodInfo method)
         {
-#if !NOCREATEDELEGATE
+#if !CF20
             object tdelegate = Delegate.CreateDelegate(typeof(Action<T1, T2>), null, method);
             return (Action<T1, T2>)tdelegate;
 #else

src/ProtocolBuffers/TextFormat.cs

@@ -708,7 +708,11 @@ namespace Google.ProtocolBuffers
                 {
                     // Explicitly specify the invariant culture so that this code does not break when
                     // executing in Turkey.
+#if PORTABLE_LIBRARY
                     String lowerName = name.ToLowerInvariant();
+#else
+                    String lowerName = name.ToLower(FrameworkPortability.InvariantCulture);
+#endif
                     field = type.FindDescriptor<FieldDescriptor>(lowerName);
                     // If the case-insensitive match worked but the field is NOT a group,
                     // TODO(jonskeet): What? Java comment ends here!