Misc API cleanup and consistency fixes (#1023)

- ROCPROFILER_API after function
- use rocprofiler_tracing_operation_t in lieu of uint32_t where appropriate
- rocprofiler_tracing_operation_t is not int32_t typedef (formerly uint32_t)
- use const T* instead of T* where appropriate

source/lib/rocprofiler-sdk/counters/tests/evaluate_ast_test.cpp

@@ -647,7 +647,7 @@ run_reduce_test(
         }
     }
 }
-};  // namespace
+}  // namespace
 
 TEST(evaluate_ast, counter_reduction_sum)
 {