attempt to fix lldb tests

Author: Sirraide

lldb/test/API/functionalities/thread/exit_during_expression/main.c

@@ -27,7 +27,7 @@ void *exiting_thread_func(void *unused) {
 }
 
 int main() {
-  char *exit_ptr;
+  void *exit_ptr;
   pthread_t exiting_thread;
 
   pthread_create(&exiting_thread, NULL, exiting_thread_func, NULL);

lldb/test/API/functionalities/valobj_errors/hidden.c

@@ -1,4 +1,4 @@
 struct Opaque {
   int i, j, k;
 } *global;
-struct Opaque *getOpaque() { return &global; }
+struct Opaque *getOpaque() { return (struct Opaque *)&global; }