Extract common code (TypeSystemContext)

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

@@ -121,13 +121,7 @@ interface ClassicTypeSystemContext : TypeSystemContext {
         return this.projectionKind.convertVariance()
     }
 
-    private fun Variance.convertVariance(): TypeVariance {
+
-        return when (this) {
-            Variance.INVARIANT -> TypeVariance.INV
-            Variance.IN_VARIANCE -> TypeVariance.IN
-            Variance.OUT_VARIANCE -> TypeVariance.OUT
-        }
-    }
 
     override fun TypeArgumentMarker.getType(): KotlinTypeMarker {
         require(this is TypeProjection, this::errorMessage)
@@ -189,23 +183,6 @@ interface ClassicTypeSystemContext : TypeSystemContext {
                 classDescriptor.kind != ClassKind.ANNOTATION_CLASS
     }
 
-
-    override fun TypeArgumentListMarker.get(index: Int): TypeArgumentMarker {
-        return when (this) {
-            is SimpleTypeMarker -> getArgument(index)
-            is ArgumentList -> get(index)
-            else -> error("unknown type argument list type: $this, ${this::class}")
-        }
-    }
-
-    override fun TypeArgumentListMarker.size(): Int {
-        return when (this) {
-            is SimpleTypeMarker -> argumentsCount()
-            is ArgumentList -> size
-            else -> error("unknown type argument list type: $this, ${this::class}")
-        }
-    }
-
     override fun SimpleTypeMarker.asArgumentList(): TypeArgumentListMarker {
         require(this is SimpleType, this::errorMessage)
         return this
@@ -258,3 +235,11 @@ interface ClassicTypeSystemContext : TypeSystemContext {
 private inline fun Any.errorMessage(): String {
     return "ClassicTypeSystemContext couldn't handle: $this, ${this::class}"
 }
+
+fun Variance.convertVariance(): TypeVariance {
+    return when (this) {
+        Variance.INVARIANT -> TypeVariance.INV
+        Variance.IN_VARIANCE -> TypeVariance.IN
+        Variance.OUT_VARIANCE -> TypeVariance.OUT
+    }
+}

core/type-system/src/org/jetbrains/kotlin/types/model/TypeSystemContext.kt

@@ -114,8 +114,21 @@ interface TypeSystemContext : TypeSystemOptimizationContext {
 
     fun SimpleTypeMarker.asArgumentList(): TypeArgumentListMarker
 
-    fun TypeArgumentListMarker.size(): Int
+    operator fun TypeArgumentListMarker.get(index: Int): TypeArgumentMarker {
-    operator fun TypeArgumentListMarker.get(index: Int): TypeArgumentMarker
+        return when (this) {
+            is SimpleTypeMarker -> getArgument(index)
+            is ArgumentList -> get(index)
+            else -> error("unknown type argument list type: $this, ${this::class}")
+        }
+    }
+
+    fun TypeArgumentListMarker.size(): Int {
+        return when (this) {
+            is SimpleTypeMarker -> argumentsCount()
+            is ArgumentList -> size
+            else -> error("unknown type argument list type: $this, ${this::class}")
+        }
+    }
 
     fun TypeConstructorMarker.isAnyConstructor(): Boolean
     fun TypeConstructorMarker.isNothingConstructor(): Boolean