1) if file size is small.
2) for ZipInputStream, in native code it reads the data in 8K chunks anyway

no dumb mode permission assertion when already in dumb mode (https://youtrack.jetbrains.com/issue/IDEA-143007#comment=27-1061564)

ProjectView: allow redefining "library home" location string in ProjectViewDirectoryHelper subclasses

more clever filtering out runtime exception during particular index data calculation to propagate indexer's exception instead of marking index to rebuild (IDEA-143023)

Document,getLineCount() will return 0 for empty document. "number of last line" is calculated as "getLineCount() - 1", leading to '-1' and exception.

method duplicates: check all outer classes for hierarchy inheritance not to make resulted method static

gradle: expose buildscript repositories and dependencies for gradle framework support providers contribution

external system: removed weird ExternalSystemApiUtil.isNewProjectConstruction method; isOneToOneMapping method moved to api; make non-mandatory to provide JavaProjectData model form external system

delete empty scheme directory only if some file was scheduled to delete — in the same way as ICS does (CR-IC-7370)

We must follow the rule — do nothing if nothing was requested