[核心]区域生成器添加了一个 `else` 并无条件执行 else 分支（java/class 输入）

The trigger is a specific CFG (the `else` reached by fall-through, plus a secondary break in the then-branch). javac does not emit this shape, so the input is hand-written JVM bytecode. To reproduce, drop the raung below into `jadx-core/src/test/raung` and decompile (jadx's raung test harness reads it directly), or assemble it with raung-asm's `executeForSingleClass` and run jadx on the class.