cleanup
diagnostics
be honest, prevent heisenbugs due to incorrect HashingStrategy
inplace rename inside injected elements (IDEA-117489)
trace when psi becomes invalid
StringUtil.unquoteString with custom quotation character
EA-52563 - assert: ChooseModulesDialog$MyTableCellRenderer$.customizeCellRenderer
check if we're holding read lock before invoking native currentThread
deprecate StubIndex.get, replace its usages with safeGet made static and renamed to getElements