Profiler: Stop disassembly on invalid instructions

Author: https://github.com/Hendiadyoin1
Commit: https://github.com/SerenityOS/serenity/commit/15331232637
Pull-request: https://github.com/SerenityOS/serenity/pull/10629
Reviewed-by: https://github.com/IdanHo

Userland/DevTools/Profiler/DisassemblyModel.cpp

@@ -123,7 +123,7 @@ DisassemblyModel::DisassemblyModel(Profile& profile, ProfileNode& node)
             break;
 
         auto insn = disassembler.next();
-        if (!insn.has_value())
+        if (!insn.has_value() || !insn.value().is_valid())
             break;
         FlatPtr address_in_profiled_program = node.address() + offset_into_symbol;