Merge "Add generic import support for Codegen"

     * Optionally shortens a class reference if there's a corresponding import present

     */

    fun classRef(fullName: String): String {

        val pkg = fullName.substringBeforeLast(".")

        val simpleName = fullName.substringAfterLast(".")

        if (fileAst.imports.any { imprt ->

        val imports = fileAst.imports

        // If an import of the same class name is available,

        // use it instead of the internal Android package variants.

        if (fullName.startsWith("com.android.internal.util.")

            && imports.any {

                it.nameAsString.endsWith(fullName.removePrefix("com.android.internal.util."))

            }

        ) {

            return fullName.removePrefix("com.android.internal.util.")

        } else if (fullName.startsWith("android.annotation")

            && imports.any { it.nameAsString.endsWith(simpleName) }

        ) {

            return simpleName

        }

        if (imports.any { imprt ->

                    imprt.nameAsString == fullName

                            || (imprt.isAsterisk && imprt.nameAsString == pkg)

                }) {