Make tests compile on Sun Studio. Patch from Monty Taylor.

src/google/protobuf/compiler/cpp/cpp_unittest.cc

@@ -451,8 +451,7 @@ TEST(GeneratedMessageTest, SerializationToArray) {
   int size = message1.ByteSize();
   data.resize(size);
   uint8* start = reinterpret_cast<uint8*>(string_as_array(&data));
-  uint8* end =
-      message1.TestAllTypes::SerializeWithCachedSizesToArray(start);
+  uint8* end = message1.SerializeWithCachedSizesToArray(start);
   EXPECT_EQ(size, end - start);
   EXPECT_TRUE(message2.ParseFromString(data));
   TestUtil::ExpectAllFieldsSet(message2);
@@ -466,8 +465,7 @@ TEST(GeneratedMessageTest, PackedFieldsSerializationToArray) {
   int packed_size = packed_message1.ByteSize();
   packed_data.resize(packed_size);
   uint8* start = reinterpret_cast<uint8*>(string_as_array(&packed_data));
-  uint8* end =
-      packed_message1.TestPackedTypes::SerializeWithCachedSizesToArray(start);
+  uint8* end = packed_message1.SerializeWithCachedSizesToArray(start);
   EXPECT_EQ(packed_size, end - start);
   EXPECT_TRUE(packed_message2.ParseFromString(packed_data));
   TestUtil::ExpectPackedFieldsSet(packed_message2);
@@ -485,7 +483,7 @@ TEST(GeneratedMessageTest, SerializationToStream) {
     // Allow the output stream to buffer only one byte at a time.
     io::ArrayOutputStream array_stream(string_as_array(&data), size, 1);
     io::CodedOutputStream output_stream(&array_stream);
-    message1.TestAllTypes::SerializeWithCachedSizes(&output_stream);
+    message1.SerializeWithCachedSizes(&output_stream);
     EXPECT_FALSE(output_stream.HadError());
     EXPECT_EQ(size, output_stream.ByteCount());
   }
@@ -504,7 +502,7 @@ TEST(GeneratedMessageTest, PackedFieldsSerializationToStream) {
     // Allow the output stream to buffer only one byte at a time.
     io::ArrayOutputStream array_stream(string_as_array(&data), size, 1);
     io::CodedOutputStream output_stream(&array_stream);
-    message1.TestPackedTypes::SerializeWithCachedSizes(&output_stream);
+    message1.SerializeWithCachedSizes(&output_stream);
     EXPECT_FALSE(output_stream.HadError());
     EXPECT_EQ(size, output_stream.ByteCount());
   }