While it is very useful to have const suggestions for pointer and reference arguments, I don't think it makes as much sense for arguments that are passed by value:
I am aware that there exist arguments for using const for pass-by-value arguments. However, the C++ Core Guidelines don't say arguments passed by value should be const: http://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines#Rconst-ref.
So personally I don't think that const by value arguments should be suggested by default.
At least this option
Should be split into two options: one option for arguments that are passed by value and an other option for passed by pointer and/or reference.