fixing MPS-18392: can create a temp model with no undo tracking
fix MPS-18392: smart-type completion
fix MPS-18392: performance
MPS-19050 Check Language (Check Generator) action doesn't show warnings in Model Checker window
make
Merge remote-tracking branch 'origin/MPS3.0'

Conflicts:
	plugins/modelchecker/platform/source_gen/jetbrains/mps/ide/modelchecker/platform/actions/ModuleChecker.java
make