Integrate LLVM at llvm/llvm-project@741ba8209c1f

Updates LLVM usage to match
[741ba8209c1f](https://github.com/llvm/llvm-project/commit/741ba8209c1f)

PiperOrigin-RevId: 832480441

Export the set of operations which can be analyzed as logical effort.

PiperOrigin-RevId: 832032270

Add checks that LazyNodeData is correctly attached.

A test previously directly added a LazyNodeData to a functions listener list. This is not supported and registration should be handled by the objects 'Attach' function.

This adds asserts that everything is setup correctly and fixes the places were we failed to do so.

PiperOrigin-RevId: 831608679

Automated Code Change

PiperOrigin-RevId: 831210294

Include leading-sign-bits count in cytoscape ir viz

PiperOrigin-RevId: 830665837

Integrate LLVM at llvm/llvm-project@2bc22ea02edd

Updates LLVM usage to match
[2bc22ea02edd](https://github.com/llvm/llvm-project/commit/2bc22ea02edd)

PiperOrigin-RevId: 829691657

Fix spawning proc, send, and recv in Proc-scoped channel Unroll_for

PiperOrigin-RevId: 829166752

Automated Code Change

PiperOrigin-RevId: 828732119

Fix clang-tidy warning for https://clang.llvm.org/extra/clang-tidy/ch…

Use rules_python Bazel rules for py_* targets.

These were using the builtin versions which are deprecated and being fully removed at some point (https://github.com/bazelbuild/bazel/issues/17773).

This also allows us to revert the workaround for incompatibility between the native and Starlark rules in https://github.com/google/xls/commit/b6c791dbfd7a8212819a119eaf6f70dc65093b83.

PiperOrigin-RevId: 827742532