utils: add a timeout to the integration tests

This will allow us to add test cases which may hang.  The timeout here
is taken from the value we use in the regular test suite (along with the
check for the timeout requirements).

Author: compnerd

utils/build-script-impl

@@ -3124,8 +3124,11 @@ function build_and_test_installable_package() {
             with_pushd "${PKG_TESTS_SANDBOX_PARENT}" \
                 call tar xzf "${package_for_host}"
 
+            if python -c import psutil ; then
+              TIMEOUT_ARGS=--timeout=3000 # 50 minutes
+            fi
             with_pushd "${PKG_TESTS_SOURCE_DIR}" \
-                call python "${LIT_EXECUTABLE_PATH}" . -sv --param package-path="${PKG_TESTS_SANDBOX}" --param test-exec-root="${PKG_TESTS_TEMPS}" --param llvm-bin-dir="${LLVM_BIN_DIR}"
+                call python "${LIT_EXECUTABLE_PATH}" . -sv --param package-path="${PKG_TESTS_SANDBOX}" --param test-exec-root="${PKG_TESTS_TEMPS}" --param llvm-bin-dir="${LLVM_BIN_DIR}" ${TIMEOUT_ARGS}
         fi
     fi
 }