Auto merge of #79397 - camelid:polonious-incr-comp, r=jonas-schievink

TRACK '-Z polonius' flag

Fixes #79316.

r? `@jonas-schievink`

Author: bors

Diff for: compiler/rustc_interface/src/tests.rs

@@ -498,7 +498,6 @@ fn test_debugging_options_tracking_hash() {
     untracked!(no_parallel_llvm, true);
     untracked!(parse_only, true);
     untracked!(perf_stats, true);
-    untracked!(polonius, true);
     // `pre_link_arg` is omitted because it just forwards to `pre_link_args`.
     untracked!(pre_link_args, vec![String::from("abc"), String::from("def")]);
     untracked!(print_link_args, true);
@@ -572,6 +571,7 @@ fn test_debugging_options_tracking_hash() {
     tracked!(osx_rpath_install_name, true);
     tracked!(panic_abort_tests, true);
     tracked!(plt, Some(true));
+    tracked!(polonius, true);
     tracked!(precise_enum_drop_elaboration, false);
     tracked!(print_fuel, Some("abc".to_string()));
     tracked!(profile, true);

Diff for: compiler/rustc_session/src/options.rs

@@ -1008,7 +1008,7 @@ options! {DebuggingOptions, DebuggingSetter, basic_debugging_options,
         "whether to use the PLT when calling into shared libraries;
         only has effect for PIC code on systems with ELF binaries
         (default: PLT is disabled if full relro is enabled)"),
-    polonius: bool = (false, parse_bool, [UNTRACKED],
+    polonius: bool = (false, parse_bool, [TRACKED],
         "enable polonius-based borrow-checker (default: no)"),
     polymorphize: bool = (false, parse_bool, [TRACKED],
           "perform polymorphization analysis"),