message: Fix testing when lldb is not installed
diff: @@ -36,9 +36,9 @@ $RUSTC example/example.rs --crate-type lib
  echo "[AOT] mini_core_hello_world"
  $RUSTC example/mini_core_hello_world.rs --crate-name mini_core_hello_world --crate-type bin -g
  ./target/out/mini_core_hello_world abc bcd
  -if lldb -v; then
  -(echo "break set -n main"; echo "run"; sleep 1; echo "si -c 10"; sleep 1; echo "frame variable") | lldb -- ./target/out/mini_core_hello_world abc bcd
  -fi
  +lldb -v && \
  + (echo "break set -n main"; echo "run"; sleep 1; echo "si -c 10"; sleep 1; echo "frame variable") \
  + | lldb -- ./target/out/mini_core_hello_world abc bcd
  exit 1
  