Returning code object id information in code_printing.cpp:Instruction (#965)

* Returning code object id information in code_printing.cpp:Instruction

* Adding assertions

* Simplifying decoder library

[ROCm/rocprofiler-sdk commit: 78fd8cb379]

projects/rocprofiler-sdk/samples/code_object_isa_decode/client.cpp

@@ -162,6 +162,7 @@ tool_codeobj_tracing_callback(rocprofiler_callback_tracing_record_t record,
         while(vaddr < begin_end.second)
         {
             auto inst = codeobjTranslate.get(vaddr);
+            assert(inst != nullptr);
             if(inst->comment.size())
             {
                 std::string_view source = inst->comment;