Return hex data if error cannot be decoded as a revert or panic (#380)

Author: hazim-j

pkg/entrypoint/execution/trace.go

@@ -149,7 +149,11 @@ func TraceSimulateHandleOp(in *TraceInput) (*TraceOutput, error) {
 		if revErr != nil {
 			code, panErr := errors.DecodePanic(data)
 			if panErr != nil {
-				return nil, fmt.Errorf("%s, %s", revErr, panErr)
+				return nil, errors.NewRPCError(
+					errors.EXECUTION_REVERTED,
+					"execution reverted with data",
+					hexutil.Encode(data),
+				)
 			}
 
 			return out, errors.NewRPCError(