Module is not always available

Now unloaded modules may be compiled (IDEA-180275), so if the build process requests usages of a changed/deleted constant field, IDE needs to tell it that usages are unknown if the field may have usages in unloaded modules.

Fixed progress texture width

1. Should not be available on methods with no body (abstract, native) and in interface (as it cannot have a constructor -- IDEA-180298)
2. Remove modifiers which are invalid on constructors

Exception in Vue path completion for template and style sources

IDEA-179511 Structure view for maven pom.xml file: with AutiscrollToSource enabled it is impossible to navigate through Structure tree by keys

call only at the top level to avoid O(depth^2) time

improves PHP indexing (WI-29998), because AST modifications
with subtreeChanged are performed routinely while parsing multi-root files
and inserting outer language elements