Bump LLVM commit to llvm/llvm-project@e60b91d

Skips through the followings commits that do not affect the Rust port:

* 38818b60c58c76ba89b990978cdfd2d7b6799260: only affects C++/LLVM specific details
* 85395af27241ab9c8d5763b8afcaa07f1bab26d5: reverted by next commit
* e60b91df1357e6a5f66840581f4d5f57e258c0b4: reverts previous commit

Author: eduardosm

Cargo.toml

@@ -2,7 +2,7 @@
 members = ["fuzz"]
 
 [workspace.package]
-version = "0.2.3+llvm-462a31f5a5ab"
+version = "0.2.3+llvm-e60b91df1357"
 edition = "2021"
 license = "Apache-2.0 WITH LLVM-exception"
 

src/lib.rs

@@ -1,6 +1,6 @@
 //! Port of LLVM's APFloat software floating-point implementation from the
 //! following C++ sources (please update commit hash when backporting):
-//! <https://github.com/llvm/llvm-project/commit/462a31f5a5abb905869ea93cc49b096079b11aa4>
+//! <https://github.com/llvm/llvm-project/commit/e60b91df1357e6a5f66840581f4d5f57e258c0b4>
 //! * `llvm/include/llvm/ADT/APFloat.h` -> `Float` and `FloatConvert` traits
 //! * `llvm/lib/Support/APFloat.cpp` -> `ieee` and `ppc` modules
 //! * `llvm/unittests/ADT/APFloatTest.cpp` -> `tests` directory