JVM_IR. Support type annotations

core/descriptors/src/org/jetbrains/kotlin/types/TypeSystemCommonBackendContext.kt

@@ -32,6 +32,7 @@ interface TypeSystemCommonBackendContext : TypeSystemContext {
 
     fun TypeConstructorMarker.getTypeParameterClassifier(): TypeParameterMarker?
     fun TypeConstructorMarker.isInlineClass(): Boolean
+    fun TypeConstructorMarker.isInnerClass(): Boolean
     fun TypeParameterMarker.getRepresentativeUpperBound(): KotlinTypeMarker
     fun KotlinTypeMarker.getSubstitutedUnderlyingType(): KotlinTypeMarker?
 

core/descriptors/src/org/jetbrains/kotlin/types/checker/ClassicTypeSystemContext.kt

@@ -556,6 +556,11 @@ interface ClassicTypeSystemContext : TypeSystemInferenceExtensionContext, TypeSy
         return (declarationDescriptor as? ClassDescriptor)?.isInline == true
     }
 
+    override fun TypeConstructorMarker.isInnerClass(): Boolean {
+        require(this is TypeConstructor, this::errorMessage)
+        return (declarationDescriptor as? ClassDescriptor)?.isInner == true
+    }
+
     override fun TypeParameterMarker.getRepresentativeUpperBound(): KotlinTypeMarker {
         require(this is TypeParameterDescriptor, this::errorMessage)
         return representativeUpperBound