This patch fixes one remaining issue related to using this library in Android apps. While compiling for Android is now possible, there is an error thrown during release builds. This occurs during the "dexing" phase, when it converts from JVM to Dalvik bytecode.

It fails when it gets to the class file generated by the IResultSetReadColumn protocol definition. This is because it makes duplicate use of the "_" symbol to represent unused arguments. This patch simply renames the symbols so they are unique.