Tier System: `hppa64-linux`

https://github.com/ziglang/zig/issues?q=is%3Aissue%20state%3Aopen%20label%3Aarch-hppa64%20label%3Aos-linux ### Tier 1 - [ ] All non-experimental language features are known to work correctly. - [ ] The compiler can generate machine code for this target without relying on LLVM. - [ ] The CI machines automatically run the module tests for this target on every push. ### Tier 2 - [ ] The standard library's cross-platform abstractions have implementations for this target. - https://github.com/ziglang/zig/issues/22189 - [ ] This target has debug info capabilities and therefore produces stack traces on failed assertions and crashes. - [ ] libc is available for this target even when cross-compiling. - [ ] The CI machines automatically build the module tests for this target on every push. ### Tier 3 - [ ] The compiler can generate machine code for this target by relying on an external backend such as LLVM. - [ ] The linker can produce object files, libraries, and executables for this target. ### Tier 4 - [x] The compiler can generate assembly or C source code for this target.