Reapply "[LV] Improve AnyOf reduction codegen. (#78304)"

This reverts the revert commit 589c7abb.

This patch includes a fix for any-of reductions and epilogue
vectorization. Extra test coverage for the issue that caused the revert
has been added in 399ff08e.

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Original commit message:

Update AnyOf reduction code generation to only keep track of the AnyOf
property in a boolean vector in the loop, only selecting either the new
or start value in the middle block.

The patch incorporates feedback from https://reviews.llvm.org/D153697.

This fixes the #62565, as now there aren't multiple uses of the
start/new values.

Fixes https://github.com/llvm/llvm-project/issues/62565

PR: https://github.com/llvm/llvm-project/pull/78304