adds all regression tests

test/threadx/generate_kernel_setup_test_file.sh

@@ -0,0 +1,16 @@
+#!/bin/bash
+set -eu
+
+src="$1"
+dst="$2"
+
+anchor='void tx_application_define(void *first_unused_memory){}'
+
+line=$(grep -n -F "$anchor" "$src" | head -n 1 | cut -d: -f1)
+if [ -z "$line" ]; then
+    echo "failed to find tx_application_define anchor in kernel setup test source" >&2
+    exit 1
+fi
+mkdir -p "$(dirname "$dst")"
+sed "${line}a\\
+void test_interrupt_dispatch(void){}" "$src" > "$dst"