Rollup merge of #130153 - onur-ozkan:verbose-to-verbose-tests, r=Kobzol

use verbose flag as a default value for `rust.verbose-tests`
See the [Zulip thread](https://rust-lang.zulipchat.com/#narrow/stream/326414-t-infra.2Fbootstrap/topic/Run.20tests.20in.20x.2Epy.20with.20.22pretty.22.20test.20rendering.3F) for more context.

Author: matthiaskrgr

config.example.toml

@@ -641,7 +641,7 @@
 #stack-protector = "none"
 
 # Prints each test name as it is executed, to help debug issues in the test harness itself.
-#verbose-tests = false
+#verbose-tests = if is_verbose { true } else { false }
 
 # Flag indicating whether tests are compiled with optimizations (the -O flag).
 #optimize-tests = true

src/bootstrap/src/core/config/config.rs

@@ -1600,6 +1600,9 @@ impl Config {
 
  config.verbose = cmp::max(config.verbose, flags.verboseasusize);
 
+// Verbose flag is a good default for `rust.verbose-tests`.
+ config.verbose_tests = config.is_verbose();
+
 ifletSome(install) = toml.install{
 letInstall{ prefix, sysconfdir, docdir, bindir, libdir, mandir, datadir } = install;
  config.prefix = prefix.map(PathBuf::from);

src/bootstrap/src/core/config/tests.rs

@@ -317,3 +317,12 @@ fn order_of_clippy_rules() {
 
 assert_eq!(expected, actual);
 }
+
+#[test]
+fnverbose_tests_default_value(){
+let config = Config::parse(Flags::parse(&["build".into(),"compiler".into()]));
+assert_eq!(config.verbose_tests,false);
+
+let config = Config::parse(Flags::parse(&["build".into(),"compiler".into(),"-v".into()]));
+assert_eq!(config.verbose_tests,true);
+}