scoring: score methods and funcs the same

[stefanhengl]

I don't remember if there was a good reason to score methods and functions differently, but I have found examples where the difference between the two scores causes the better result to be lower ranked, although it has a higher doc-order boost.

Here is one example

r:golang/go bits Len

Note: Scip-ctags distinguishes between methods and functions, universal-ctags does not.

Test plan:
updated score tests

[keegancsmith]

Lets do this. But as a counterpoint I think functions generally should be higher ranked. I think what is going wrong here in your example query is we don't properly boost filename matches with exact matches in the file.

[stefanhengl]

I think what is going wrong here in your example query is we don't properly boost filename matches with exact matches in the file.

I will look into this today. I guess we don't boost exact over partial matches in filenames.