rename test suite directories

ci.sh

@@ -26,7 +26,7 @@ function run_tests {
     # optimizations up all the way).
     # Optimizations change diagnostics (mostly backtraces), so we don't check them
     #FIXME(#2155): we want to only run the pass and panic tests here, not the fail tests.
-    MIRIFLAGS="-O -Zmir-opt-level=4" MIRI_SKIP_UI_CHECKS=1 ./miri test --locked -- tests/{run-pass,run-fail}
+    MIRIFLAGS="-O -Zmir-opt-level=4" MIRI_SKIP_UI_CHECKS=1 ./miri test --locked -- tests/{pass,panic}
   fi
 
   # On Windows, there is always "python", not "python3" or "python2".

tests/compiletest.rs

@@ -132,7 +132,7 @@ fn main() {
     // Let the tests know where to store temp files (they might run for a different target, which can make this hard to find).
     env::set_var("MIRI_TEMP", env::temp_dir());
 
-    ui(Mode::Pass, "tests/run-pass");
-    ui(Mode::Panic, "tests/run-fail");
-    ui(Mode::Fail, "tests/compile-fail");
+    ui(Mode::Pass, "tests/pass");
+    ui(Mode::Panic, "tests/panic");
+    ui(Mode::Fail, "tests/fail");
 }