Update for Rust 1.78 fork of LLVM toolchain.

Update for Rust 1.75 fork of LLVM toolchain.

Update for Rust 1.71 fork of LLVM toolchain.

Update for Rust 1.65 fork of LLVM toolchain.

Update for Rust 1.64 fork of LLVM toolchain.

Update for Rust 1.59 fork of LLVM toolchain.

Update for Rust 1.55 fork of LLVM toolchain.

Notable additions:

• Add LLD cli options --load-pass-plugin=.. for MacOS
• Add LLD cli options --lto-newpm-passes=.. for MacOS

Update for Rust 1.51 fork of LLVM toolchain. LLD is provided with support for LTO pass plugins.

Notable additions:

• Add LLD cli options --load-pass-plugin=.. for Linux and /load-pass-plugin:.. for Windows
• Add LLD cli options --lto-newpm-passes=.. for Linux and /lto-newpm-passes:.. for Windows

LLVM toolchain (Rust 1.46 fork) with pass plugins support.

Notable additions:

• Fix build with MSVC
• Fix LLVM plugin support on Windows