Auto-generate files after cl/605097398

csharp/src/Google.Protobuf/Reflection/Descriptor.pb.cs

@@ -6031,12 +6031,16 @@ namespace Google.Protobuf.Reflection {
 
     private bool javaStringCheckUtf8_;
     /// <summary>
-    /// If set true, then the Java2 code generator will generate code that
+    /// A proto2 file can set this to true to opt in to UTF-8 checking for Java,
-    /// throws an exception whenever an attempt is made to assign a non-UTF-8
+    /// which will throw an exception if invalid UTF-8 is parsed from the wire or
-    /// byte sequence to a string field.
+    /// assigned to a string field.
-    /// Message reflection will do the same.
+    ///
-    /// However, an extension field still accepts non-UTF-8 byte sequences.
+    /// TODO: clarify exactly what kinds of field types this option
-    /// This option has no effect on when used with the lite runtime.
+    /// applies to, and update these docs accordingly.
+    ///
+    /// Proto3 files already perform these checks. Setting the option explicitly to
+    /// false has no effect: it cannot be used to opt proto3 files out of UTF-8
+    /// checks.
     /// </summary>
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute]
     [global::System.CodeDom.Compiler.GeneratedCode("protoc", null)]