Fix leaks in new tests (#28435)

Fixes memory leaks in new tests

[Reviewed by @dlongnecke-cray]

Author: jabraham17

test/llvm/debugInfo/lldb/lists.chpl

@@ -59,6 +59,7 @@ proc main() {
   writeln("Class List: ", myClassList);
   breakpoint;
   writeln("Class List Again: ", myClassList);
+  for x in myClassList do delete x;
 }
 
 

test/llvm/debugInfo/lldb/maps.chpl

@@ -57,6 +57,7 @@ proc main() {
   writeln("Class Map: ", myClassMap);
   breakpoint;
   writeln("Class Map Again: ", myClassMap);
+  for x in myClassMap.values() do delete x;
 }
 
 

test/llvm/debugInfo/lldb/sets.chpl

@@ -58,6 +58,7 @@ proc main() {
   writeln("Class Set: ", myClassSet);
   breakpoint;
   writeln("Class Set Again: ", myClassSet);
+  for x in myClassSet do delete x;
 }