Ignore redundant projections for declaration-site variance

compiler/testData/writeSignature/declarationSiteVariance/RedundantProjections.kt

@@ -0,0 +1,17 @@
+class Out<out E>
+interface Open
+class Final
+
+fun foo(x: Out<out Open>, y: Out<out Final>): Out<out Open> = Out()
+
+// method: RedundantProjectionsKt::foo
+// jvm signature: (LOut;LOut;)LOut;
+// generic signature: (LOut<+LOpen;>;LOut<LFinal;>;)LOut<LOpen;>;
+
+class In<in F>
+
+fun bar(x: In<in Open>, y: In<in Any?>): In<in Open> = In()
+
+// method: RedundantProjectionsKt::bar
+// jvm signature: (LIn;LIn;)LIn;
+// generic signature: (LIn<-LOpen;>;LIn<Ljava/lang/Object;>;)LIn<LOpen;>;