update language descriptor model on language rename
IdHelper returns null if language is not found
MPS-21011 Rename language fails
do not rely on module names since we are going to support easy rename
update module name in modules.xml on rename
trying to resolve SLanguage when asking language name
use language id to avoid errors on rename
do not write loggable refactoring on language rename
allow  node<AbstractConceptDeclaration>.asConcept operation
use language id when loading/unloading language runtimes
fix compilation error in plugin
add necessary read action into MigrationComponent
fix typo
make after rebase
rewrite code using SContainmentLink
looking at parent concept when adding property/reference attribute
rewrite QueryProperty using SProperty
synchronize models with source_gen
rewrite code using SReferenceLink
rebuild project after generator changed