Use Variance instead of custom class in KtTypeArgumentWithVariance

idea/idea-frontend-api/src/org/jetbrains/kotlin/idea/frontend/api/KtTypeArgument.kt

@@ -6,6 +6,7 @@
 package org.jetbrains.kotlin.idea.frontend.api
 
 import org.jetbrains.kotlin.idea.frontend.api.types.KtType
+import org.jetbrains.kotlin.types.Variance
 
 sealed class KtTypeArgument
 
@@ -13,10 +14,5 @@ object KtStarProjectionTypeArgument : KtTypeArgument()
 
 abstract class KtTypeArgumentWithVariance : KtTypeArgument() {
     abstract val type: KtType
-    abstract val variance: KtTypeArgumentVariance
+    abstract val variance: Variance
 }
-
-enum class KtTypeArgumentVariance {
-    COVARIANT, CONTRAVARIANT, INVARIANT
-}
-

idea/idea-frontend-api/src/org/jetbrains/kotlin/idea/frontend/api/components/KtTypeRenderer.kt

@@ -8,6 +8,7 @@ package org.jetbrains.kotlin.idea.frontend.api.components
 import org.jetbrains.kotlin.idea.frontend.api.*
 import org.jetbrains.kotlin.idea.frontend.api.types.*
 import org.jetbrains.kotlin.name.ClassId
+import org.jetbrains.kotlin.types.Variance
 
 abstract class KtTypeRenderer : KtAnalysisSessionComponent() {
     abstract fun render(type: KtType, options: KtTypeRendererOptions): String
@@ -83,9 +84,9 @@ class KtDefaultTypeRenderer(override val analysisSession: KtAnalysisSession, ove
             }
             is KtTypeArgumentWithVariance -> {
                 val varianceWithSpace = when (typeArgument.variance) {
-                    KtTypeArgumentVariance.COVARIANT -> "out "
+                    Variance.OUT_VARIANCE -> "out "
-                    KtTypeArgumentVariance.CONTRAVARIANT -> "in "
+                    Variance.IN_VARIANCE -> "in "
-                    KtTypeArgumentVariance.INVARIANT -> ""
+                    Variance.INVARIANT -> ""
                 }
                 append(varianceWithSpace)
                 render(typeArgument.type, options)

idea/idea-frontend-fir/src/org/jetbrains/kotlin/idea/frontend/api/fir/KtSymbolByFirBuilder.kt

@@ -29,6 +29,7 @@ import org.jetbrains.kotlin.idea.frontend.api.types.KtType
 import org.jetbrains.kotlin.idea.stubindex.PackageIndexUtil
 import org.jetbrains.kotlin.name.ClassId
 import org.jetbrains.kotlin.name.FqName
+import org.jetbrains.kotlin.types.Variance
 import java.util.concurrent.ConcurrentMap
 
 /**
@@ -189,9 +190,9 @@ internal class KtSymbolByFirBuilder private constructor(
     }
 
     private fun ProjectionKind.toVariance() = when (this) {
-        ProjectionKind.OUT -> KtTypeArgumentVariance.COVARIANT
+        ProjectionKind.OUT -> Variance.OUT_VARIANCE
-        ProjectionKind.IN -> KtTypeArgumentVariance.CONTRAVARIANT
+        ProjectionKind.IN -> Variance.IN_VARIANCE
-        ProjectionKind.INVARIANT -> KtTypeArgumentVariance.INVARIANT
+        ProjectionKind.INVARIANT -> Variance.INVARIANT
         ProjectionKind.STAR -> error("KtStarProjectionTypeArgument be directly created")
     }
 

idea/idea-frontend-fir/src/org/jetbrains/kotlin/idea/frontend/api/fir/types/FirKtType.kt

@@ -18,6 +18,7 @@ import org.jetbrains.kotlin.idea.frontend.api.symbols.KtTypeParameterSymbol
 import org.jetbrains.kotlin.idea.frontend.api.types.*
 import org.jetbrains.kotlin.name.ClassId
 import org.jetbrains.kotlin.name.Name
+import org.jetbrains.kotlin.types.Variance
 
 internal interface KtFirType : KtType, ValidityTokenOwner {
     val coneType: ConeKotlinType
@@ -103,5 +104,5 @@ internal class KtFirIntersectionType(
 
 internal class KtFirTypeArgumentWithVariance(
     override val type: KtType,
-    override val variance: KtTypeArgumentVariance
+    override val variance: Variance
 ) : KtTypeArgumentWithVariance()