Mark missing '@Override' annotation as warning
Remove unnecessary annotation updating after document saving
Refactoring: make getLineSeparatorsOccurences and isNewLine methods from AlignmentStrategy utility
Refactoring: move method createReferenceFile from KotlinOpenDeclarationTestCase to base class
Add method to get PsiFile by IFile
Add utility methods to get IFile and source code by editor
Add auto import fix for unresolved references to classes in Kotlin files
Add quick fix proposals about auto import to editor
Move method joinBuildThread to base class
Add tests for auto-import