[code-reflection] RFR: Improved NormalizeBlocksTransformer and its application in BytecodeGenerator.

[Adam Sotona]

On Mon, 12 Jan 2026 12:06:04 GMT, Adam Sotona <asotona at openjdk.org> wrote:

> Lowering of pattern matching in switch statements and expressions produces an inefficient tree of conditional branches. This PR does not improve the lowering itself; however, it reduces overhead in the generated bytecode. 
> 
> `NormalizeBlocksTransformer` is improved to handle redundant conditional branches. It skips intermediate conditional branches with constant boolean arguments and re-targets them directly to the true or false branch, based on the argument's constant value.
> 
> The `BytecodeGenerator` prepends `NormalizeBlocksTransformer` to leverage the optimized models for bytecode generation.

... working on move to `NormalizeBlocksTransformer`

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PR Comment: https://git.openjdk.org/babylon/pull/829#issuecomment-3740017972