Fix for KT-7306: Implicit array conversions cause ClassCastException at runtime

#KT-7306 Fixed

compiler/testData/codegen/boxWithStdlib/arrays/inProjectionAsParameter.kt

@@ -0,0 +1,9 @@
+fun test(y: Array<in Array<String>>) {
+    y[0] = kotlin.array("OK")
+}
+
+fun box() : String {
+    val x : Array<Array<*>> = kotlin.array(kotlin.array(1))
+    test(x)
+    return x[0][0] as String
+}

compiler/testData/codegen/boxWithStdlib/arrays/inProjectionOfArray.kt

@@ -0,0 +1,10 @@
+fun box(): String {
+    val x : Array<Array<*>> = array(array(1))
+    val y : Array<in Array<String>> = x
+
+    if (y.size() != 1) return "fail 1"
+
+    y[0] = array("OK")
+
+    return x[0][0] as String
+}

compiler/testData/codegen/boxWithStdlib/arrays/inProjectionOfList.kt

@@ -0,0 +1,10 @@
+fun box(): String {
+    val x: Array<List<*>> = array(listOf(1))
+    val y : Array<in List<String>> = x
+
+    if (y.size() != 1) return "fail 1"
+
+    y[0] = listOf("OK")
+
+    return x[0][0] as String
+}