Fix wildcards for invariant arguments

See test with Java, we want preserve the invariant that if return type and
value parameter types are same in Kotlin, than we can use such return-value
as argument for that parameter

compiler/testData/writeSignature/declarationSiteVariance/wildcardOptimization/arrays.kt

@@ -8,7 +8,7 @@ open class Open
 
 fun arrayOfOutOpen(x: Array<Out<Open>>) {}
 // method: ArraysKt::arrayOfOutOpen
-// generic signature: ([LOut<+LOpen;>;)V
+// generic signature: ([LOut<LOpen;>;)V
 
 fun arrayOfOutFinal(x: Array<Out<Final>>) {}
 // method: ArraysKt::arrayOfOutFinal

compiler/testData/writeSignature/declarationSiteVariance/wildcardOptimization/finalReturnType.kt

@@ -10,6 +10,10 @@ fun skipAllOutInvWildcards(): Inv<OutPair<Open, Out<Out<Open>>>> = null!!
 // method: FinalReturnTypeKt::skipAllOutInvWildcards
 // generic signature: ()LInv<LOutPair<LOpen;LOut<LOut<LOpen;>;>;>;>;
 
+fun skipAllInvWildcards(): Inv<In<Out<Open>>> = null!!
+// method: FinalReturnTypeKt::skipAllInvWildcards
+// generic signature: ()LInv<LIn<LOut<+LOpen;>;>;>;
+
 fun notDeepIn(): In<Final> = null!!
 // method: FinalReturnTypeKt::notDeepIn
 // generic signature: ()LIn<LFinal;>;

compiler/testData/writeSignature/declarationSiteVariance/wildcardOptimization/topLevelInv.kt

@@ -1,4 +1,5 @@
 class Inv<X>
+class In<in E>
 class Out<out T>
 class Final
 open class Open
@@ -13,12 +14,20 @@ fun invFinal(x: Inv<Final>) {}
 
 fun invOutOpen(x: Inv<Out<Open>>) {}
 // method: TopLevelInvKt::invOutOpen
-// generic signature: (LInv<LOut<+LOpen;>;>;)V
+// generic signature: (LInv<LOut<LOpen;>;>;)V
 
 fun invOutFinal(x: Inv<Out<Final>>) {}
 // method: TopLevelInvKt::invOutFinal
 // generic signature: (LInv<LOut<LFinal;>;>;)V
 
+fun invInOutOpen(x: Inv<In<Out<Open>>>) {}
+// method: TopLevelInvKt::invInOutOpen
+// generic signature: (LInv<LIn<LOut<+LOpen;>;>;>;)V
+
+fun invInOutFinal(x: Inv<In<Out<Final>>>) {}
+// method: TopLevelInvKt::invInOutFinal
+// generic signature: (LInv<LIn<LOut<LFinal;>;>;>;)V
+
 fun invOutProjectedOutFinal(x: Inv<out Out<Final>>) {}
 // method: TopLevelInvKt::invOutProjectedOutFinal
 // generic signature: (LInv<+LOut<LFinal;>;>;)V