Initial commit for timeout hang test

Author: ayylol

llvm/utils/lit/tests/Inputs/timeout-hang/lit.cfg

@@ -0,0 +1,7 @@
+import lit.formats
+
+config.name = "timeout-hang"
+config.suffixes = [".py"]
+config.test_format = lit.formats.ShTest()
+config.test_source_root = None
+config.test_exec_root = None

llvm/utils/lit/tests/Inputs/timeout-hang/run-nonexistent.py

@@ -0,0 +1 @@
+# RUN: nonexistent

llvm/utils/lit/tests/timeout-hang.py

@@ -0,0 +1,6 @@
+# REQUIRES: lit-max-individual-test-time
+
+# https://github.com/llvm/llvm-project/issues/133914
+
+# RUN: not %{lit} %{inputs}/timeout-hang/run-nonexistent.py \
+# RUN: --timeout=1 --param external=0 -a