tests: add lldb-dwz to test lldb doesn't crash with dwz debuginfo

tests/lldb-dwz/main.fmf

@@ -0,0 +1,17 @@
+summary: "Test that lldb doesn't crash with dwz debuginfo"
+test: "$WITH_SCL ./test.sh"
+require:
+  - coreutils-debuginfo
+adjust:
+  # Common requirements when LLVM is not SCL-ized
+  - require+:
+      - lldb
+    when: "collection is not defined"
+
+  # Requirements for SCL-ized LLVM
+  - require+:
+      - llvm-toolset-13.0-lldb
+    when: "collection == llvm-toolset-13.0"
+  - require+:
+      - llvm-toolset-14.0-lldb
+    when: "collection == llvm-toolset-14.0"

tests/lldb-dwz/test.sh

@@ -0,0 +1,9 @@
+#!/bin/sh -eux
+
+lldb -b -o 'b main' -o run -o c -- true 2>&1 | tee lldb.log
+
+# lldb should report unsupported dwarf data, yet shouldn't crash
+grep "unsupported DW_FORM values" lldb.log
+grep "stop reason = breakpoint" lldb.log
+# Ensure the process ends successfully (no crashes)
+grep -E "Process [0-9]+ exited with status = 0" lldb.log