Support Nothing type in typeOf

The proper support will come in KT-15518, but that would be a breaking
change even for stable Kotlin without kotlin-reflect. Before that issue
is fixed, represent Nothing in types with the Void class, and use a flag
in the no-reflect implementation to remember that it's not actually the
Void class itself.

 #KT-39166 Fixed

compiler/backend/src/org/jetbrains/kotlin/codegen/inline/typeOf.kt

@@ -98,6 +98,8 @@ fun <KT : KotlinTypeMarker> TypeSystemCommonBackendContext.generateTypeOf(
     if (intrinsicsSupport.state.stableTypeOf) {
         if (intrinsicsSupport.isMutableCollectionType(type)) {
             v.invokestatic(REFLECTION, "mutableCollectionType", Type.getMethodDescriptor(K_TYPE, K_TYPE), false)
+        } else if (type.typeConstructor().isNothingConstructor()) {
+            v.invokestatic(REFLECTION, "nothingType", Type.getMethodDescriptor(K_TYPE, K_TYPE), false)
         }
 
         if (type.isFlexible()) {