Improvements in KotlinCopyPasteReferenceProcessor

reduced scope of nonBlockingRead to avoid long rerun of it
used smart pointers to keep valid elements over changes
moved back to non-modal progress

Relates to #KT-37414

compiler/resolution/src/org/jetbrains/kotlin/resolve/calls/inference/components/KotlinConstraintSystemCompleter.kt

@@ -9,6 +9,7 @@ import org.jetbrains.kotlin.builtins.KotlinBuiltIns
 import org.jetbrains.kotlin.builtins.isBuiltinFunctionalType
 import org.jetbrains.kotlin.builtins.isBuiltinFunctionalTypeOrSubtype
 import org.jetbrains.kotlin.builtins.isExtensionFunctionType
+import org.jetbrains.kotlin.progress.ProgressIndicatorAndCompilationCanceledStatus
 import org.jetbrains.kotlin.resolve.calls.components.transformToResolvedLambda
 import org.jetbrains.kotlin.resolve.calls.inference.ConstraintSystemBuilder
 import org.jetbrains.kotlin.resolve.calls.inference.NewConstraintSystem
@@ -302,6 +303,7 @@ class KotlinConstraintSystemCompleter(
         analyze: (PostponedResolvedAtom) -> Unit
     ): Boolean {
         for (argument in getOrderedNotAnalyzedPostponedArguments(topLevelAtoms)) {
+            ProgressIndicatorAndCompilationCanceledStatus.checkCanceled()
             if (canWeAnalyzeIt(c, argument)) {
                 analyze(argument)
                 return true