libtest: add --list option to list tests and benchmarks

This option lists all the tests and benchmarks a binary provides. By default the listing
is sent to stdout, but if --logfile is also specified, it is written there.

If filters are specified, they're applied before the output is emitted.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/tools/compiletest/src/main.rs b/src/tools/compiletest/src/main.rs
index cbdf75eda26..e4d9836c562 100644
--- a/src/tools/compiletest/src/main.rs
+++ b/src/tools/compiletest/src/main.rs
@@ -325,6 +325,7 @@ pub fn test_opts(config: &Config) -> test::TestOpts {
         color: test::AutoColor,
         test_threads: None,
         skip: vec![],
+        list: false,
     }
 }