Update resolve.rs

Otherwise the code wouldn't compile since the added tokens were taken as variables by the compiler.
Merge pull request #11 from derekchiang/patch-1

Update resolve.rs
Merge branch 'fix-build-master' of github.com:ebfe/racer into ebfe-fix-build-master
Merge branch 'ebfe-fix-build-master'
pass -O to rust build. Makes racer much faster!
Better searches for methods. Also fudge method support for builtin &str
Adapt to removal of ~str.