add repeat test script

repeatTest.bash

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+# recommended to build test binary separately and then run it in a loop (to avoid running cabal test in a loop)
+# Run tests in a loop
+for i in {1..500}; do
+    echo "Iteration $i" &&
+    HLS_TEST_LOG_STDERR=1 TASTY_PATTERN="simple-multi-def-test" cabal test ghcide-tests \
+    || {
+        echo "Warning: error at iteration $i"
+        break
+        }; done