Added patch IR for applying patches generated by the IR diff on IRs.

PiperOrigin-RevId: 703630687

[xls][mlir] Add `extern_sproc` and `extern_eproc` ops

These ops allow to reference procedures external to the current module. Support has
been added in -elaborate-procs to elaborate from extern_sproc to extern_eproc.

No support has been added for linking modules and "resolving" the externs.

PiperOrigin-RevId: 703196503

Move formatting `VerbatimNode` and `ConstAssert` from `Fmt` standalon…

Add setting Codegen NG flag during fuzzer sample generation.

PiperOrigin-RevId: 702185844

[mlir][xls] Optimize ternary_ops::FromKnownBits()

On workloads with large bits datatypes this function has been observed to be super hot (dominating in
the profile).

In 120s of CPU time in this benchmark, 53s comes directly from this function. After optimization
the function takes 500ms.

PiperOrigin-RevId: 701531383

[xls][mlir] Sort spawns regions topologically after OptimizeSpawns fi…

[XLS] Only run LUT conversion pass once

This pass is about to get a bit too expensive to run in every fixed-point simplification pass.

PiperOrigin-RevId: 700533971

Make block conversion a pass in the unified generator.

PiperOrigin-RevId: 700145655

Fix broken test.

PiperOrigin-RevId: 699349166

github_workflows: clean up workflow

- rename workflow file to better reflect current state
- only deploy on push event (Fixes #1742)

PiperOrigin-RevId: 698950685