compiletest: Update mode list displayed in --help

Author: tmiasko

src/tools/compiletest/src/main.rs

@@ -70,7 +70,8 @@ pub fn parse_config(args: Vec<String>) -> Config {
             "",
             "mode",
             "which sort of compile tests to run",
-            "(compile-fail|run-fail|run-pass-valgrind|pretty|debug-info|incremental|mir-opt)",
+            "compile-fail | run-fail | run-pass-valgrind | pretty | debug-info | codegen | rustdoc \
+             codegen-units | incremental | run-make | ui | js-doc-test | mir-opt | assembly",
         )
         .optopt(
             "",