avoid blocking runReadAction in debug logging
PsiSearchHelper changes cherry-picked (r:Peter)
Merge branch '133' of git.labs.intellij.net:idea/community into 133
check that index for which indexUnsavedDocument is performed can be applied to given file type (EA-47740) [r=Eugene.Zhuravlev]
(cherry picked from commit 0057f81)
removed LOG.error for null syntax highlighter
(cherry picked from commit 3e4c22c) [r=Peter.Gromov]
IDEA-104734 Dracula: Cannot see well active tab in Modules Settings