Initial indexed resolve changes
Merge branch 'resolve-changes' into metrics
1. Add stub switching alert to resolve performance tests
2. Added isClassDefinition to NS stub and use from File.isClassDefinition
3. Modify ClojureClassFinder to use NS rather than file
4. Misc test fixes
1. Use indexed lookups to resolve method calls.
2. Remove create-ns PSI element.
1. Use indexed lookups for java.lang classes
2. Add metrics for children in current file