[FIR] Fix incompatible KClass<Any> and callable reference Collection::class, ^KT-51272 Fixed

compiler/testData/diagnostics/tests/callableReference/callableReferenceInWhenExpression.kt

@@ -0,0 +1,18 @@
+// FIR_IDENTICAL
+// ISSUE: KT-51272
+
+import kotlin.reflect.KClass
+
+fun testOnKClass(rootClass: KClass<Any>): Int {
+    return when (rootClass) {
+        Collection::class -> 1
+        else -> 2
+    }
+}
+
+fun testOnClass(rootClass: Class<Any>): Int {
+    return when (rootClass) {
+        Collection::class -> 1
+        else -> 2
+    }
+}