[NI] Refactor compiler representation of integer literals types

Add `IntegerLiteralTypeConstructor` that holds types, that can take
  integer literal with given value. It has two supertypes
  (`Number` and `Comparable<IntegerLiteralType>`) and have
  special rules for subtyping, `intersect` and `commonSuperType`
  functions with primitive number:

Example (assuming that ILT holds Int type):
* ILT <: Int
* Int :> ILT
* ILT intersect Int = Int
* commonSuperType(ILT, Int) = Int

#KT-30293 Fixed
#KT-30446 Fixed

plugins/uast-kotlin/src/org/jetbrains/uast/kotlin/internal/kotlinInternalUastUtils.kt

@@ -49,6 +49,7 @@ import org.jetbrains.kotlin.resolve.DescriptorToSourceUtils
 import org.jetbrains.kotlin.resolve.DescriptorUtils
 import org.jetbrains.kotlin.resolve.calls.callUtil.getResolvedCall
 import org.jetbrains.kotlin.resolve.calls.model.ArgumentMatch
+import org.jetbrains.kotlin.resolve.constants.IntegerLiteralTypeConstructor
 import org.jetbrains.kotlin.resolve.constants.IntegerValueTypeConstructor
 import org.jetbrains.kotlin.resolve.descriptorUtil.fqNameSafe
 import org.jetbrains.kotlin.serialization.deserialization.descriptors.DeserializedCallableMemberDescriptor
@@ -209,10 +210,10 @@ internal fun KotlinType.toPsiType(lightDeclaration: PsiModifierListOwner?, conte
             "kotlin.String" -> PsiType.getJavaLangString(context.manager, context.resolveScope)
             else -> {
                 val typeConstructor = this.constructor
-                if (typeConstructor is IntegerValueTypeConstructor) {
-                    TypeUtils.getDefaultPrimitiveNumberType(typeConstructor).toPsiType(lightDeclaration, context, boxed)
-                } else {
-                    null
+                when (typeConstructor) {
+                    is IntegerValueTypeConstructor -> TypeUtils.getDefaultPrimitiveNumberType(typeConstructor).toPsiType(lightDeclaration, context, boxed)
+                    is IntegerLiteralTypeConstructor -> typeConstructor.getApproximatedType().toPsiType(lightDeclaration, context, boxed)
+                    else -> null
                 }
             }
         }