Inference: handle Exact constraints with captured types properly

#KT-41818 Fixed

compiler/testData/diagnostics/testsWithStdLib/implicitNothingInDelegate.kt

@@ -0,0 +1,20 @@
+// FIR_IDENTICAL
+// FIR_DUMP
+// WITH_REFLECT
+
+import kotlin.reflect.KProperty
+
+@Suppress("INVISIBLE_REFERENCE")
+public operator fun <V, V1 : V> Map<in String, @kotlin.internal.Exact V>.getValue(thisRef: Any?, property: KProperty<*>): V1 = null!!
+
+val m2: Map<String, *>  = mapOf("baz" to "bat")
+val bar: String get() = m2.getValue(null, ::bar)
+
+fun foo() {
+    val m1: Map<String, Any>  = mapOf("foo" to "bar")
+    val foo: String by m1
+    val baz: String by m2
+    println(foo) // bar
+    println(baz) // kotlin.KotlinNothingValueException
+    println(bar)
+}