[llvm] Reenable JumpTableToSwitch pass by default (PR #83229)

[Alexander Shaposhnikov via llvm-commits]

alexander-shaposhnikov wrote:

@DavidSpickett - would you be so kind to try to build Flang from the latest source (using a bootstrapped version of Clang with the optimization enabled (need to add cl::init(true) to EnableJumpTableToSwitch) (but leave the threshold unchanged)) on your machine and see how long it takes ?

https://github.com/llvm/llvm-project/pull/83229