Auto merge of #119129 - jyn514:verbose, r=compiler-errors,estebank

rework `-Zverbose`

implements the changes described in https://github.com/rust-lang/compiler-team/issues/706

the first commit is only a name change from `-Zverbose` to `-Zverbose-internals` and does not change behavior. the second commit changes diagnostics.

possible follow up work:
- `ty::pretty` could print more info with `--verbose` than it does currently. `-Z verbose-internals` shows too much info in a way that's not helpful to users. michael had ideas about this i didn't fully understand: https://rust-lang.zulipchat.com/#narrow/stream/233931-t-compiler.2Fmajor-changes/topic/uplift.20some.20-Zverbose.20calls.20and.20rename.20to.E2.80.A6.20compiler-team.23706/near/408984200
- `--verbose` should imply `-Z write-long-types-to-disk=no`. the code in `ty_string_with_limit` should take `--verbose` into account (apparently this affects `Ty::sort_string`, i'm not familiar with this code). writing a file to disk should suggest passing `--verbose`.

r? `@compiler-errors` cc `@estebank`

compiler/rustc_session/src/config.rs

@@ -1116,6 +1116,7 @@ impl Default for Options {
             working_dir: RealFileName::LocalPath(std::env::current_dir().unwrap()),
             color: ColorConfig::Auto,
             logical_env: FxIndexMap::default(),
+            verbose: false,
         }
     }
 }
@@ -2916,6 +2917,8 @@ pub fn build_session_options(early_dcx: &mut EarlyDiagCtxt, matches: &getopts::M
         RealFileName::LocalPath(path.into_owned())
     };
 
+    let verbose = matches.opt_present("verbose") || unstable_opts.verbose_internals;
+
     Options {
         assert_incr_state,
         crate_types,
@@ -2957,6 +2960,7 @@ pub fn build_session_options(early_dcx: &mut EarlyDiagCtxt, matches: &getopts::M
         working_dir,
         color,
         logical_env,
+        verbose,
     }
 }
 

compiler/rustc_session/src/options.rs

@@ -223,6 +223,8 @@ top_level_options!(
         /// The (potentially remapped) working directory
         working_dir: RealFileName [TRACKED],
         color: ColorConfig [UNTRACKED],
+
+        verbose: bool [UNTRACKED],
     }
 );
 
@@ -1991,8 +1993,8 @@ written to standard error output)"),
         "use legacy .ctors section for initializers rather than .init_array"),
     validate_mir: bool = (false, parse_bool, [UNTRACKED],
         "validate MIR after each transformation"),
-    #[rustc_lint_opt_deny_field_access("use `Session::verbose` instead of this field")]
-    verbose: bool = (false, parse_bool, [UNTRACKED],
+    #[rustc_lint_opt_deny_field_access("use `Session::verbose_internals` instead of this field")]
+    verbose_internals: bool = (false, parse_bool, [UNTRACKED],
         "in general, enable more debug printouts (default: no)"),
     #[rustc_lint_opt_deny_field_access("use `Session::verify_llvm_ir` instead of this field")]
     verify_llvm_ir: bool = (false, parse_bool, [TRACKED],

compiler/rustc_session/src/session.rs

@@ -665,8 +665,8 @@ impl Session {
 // JUSTIFICATION: defn of the suggested wrapper fns
 #[allow(rustc::bad_opt_access)]
 impl Session {
-    pub fn verbose(&self) -> bool {
-        self.opts.unstable_opts.verbose
+    pub fn verbose_internals(&self) -> bool {
+        self.opts.unstable_opts.verbose_internals
     }
 
     pub fn print_llvm_stats(&self) -> bool {