[FIR] Add UNCHECKED_CAST

Regenerate diagnostics code

compiler/testData/diagnostics/tests/inference/capturedTypes/kt46727.fir.kt

@@ -39,7 +39,7 @@ fun main1() {
 // --- from Kotlin --- //
 
 public class Bar<T> {
-    var value: T = null as T
+    var value: T = null <!UNCHECKED_CAST!>as T<!>
 }
 
 fun takeStarBar(x: Bar<*>) {
@@ -115,4 +115,4 @@ fun main6() {
     bar.value = 1
     takeStarBar3(bar)
     println(bar.value) // CCE: String cannot be cast to Number
-}
+}

compiler/testData/diagnostics/tests/inference/capturedTypes/kt46727Warnings.fir.kt

@@ -39,7 +39,7 @@ fun main1() {
 // --- from Kotlin --- //
 
 public class Bar<T> {
-    var value: T = null as T
+    var value: T = null <!UNCHECKED_CAST!>as T<!>
 }
 
 fun takeStarBar(x: Bar<*>) {

compiler/testData/diagnostics/tests/inference/expectedTypeAdditionalTest.fir.kt

@@ -2,7 +2,7 @@
 
 fun foo() = 1
 
-fun <T> foo() = foo() as T
+fun <T> foo() = foo() <!UNCHECKED_CAST!>as T<!>
 
 fun <T> foo2(): T = TODO()
 

compiler/testData/diagnostics/tests/inference/recursiveTypes/selfTypes/disabledInferenceOnSelfTypes/writerAppenderExampleRecursive.fir.kt

@@ -12,7 +12,7 @@ object WriterAppender {
 
     class Builder1<B : Builder1<B>> {
         fun asBuilder(): B {
-            return this as B
+            return this <!UNCHECKED_CAST!>as B<!>
         }
     }
 
@@ -23,4 +23,4 @@ object WriterAppender {
     fun <B> intersectTwoSelfTypes(): B where B : Builder1<B>, B: Builder2<B> {
         return Builder1<B>().asBuilder()
     }
-}
+}

compiler/testData/diagnostics/tests/inference/recursiveTypes/selfTypes/enabledInferenceOnSelfTypes/writerAppenderExampleRecursive.fir.kt

@@ -37,7 +37,7 @@ object WriterAppender {
 
     class Builder1<B : Builder1<B>> {
         fun asBuilder(): B {
-            return this as B
+            return this <!UNCHECKED_CAST!>as B<!>
         }
     }
 
@@ -48,4 +48,4 @@ object WriterAppender {
     fun <B> intersectTwoSelfTypes(): B where B : Builder1<B>, B: Builder2<B> {
         return Builder1<B>().asBuilder()
     }
-}
+}

compiler/testData/diagnostics/tests/inference/regressions/kt35844.fir.kt

@@ -11,7 +11,7 @@ class B<T> {
 fun <Y> foo(c: A<Y>): Y = TODO()
 
 fun <E> main(a: A<E>) {
-    a as A<B<*>>
+    a <!UNCHECKED_CAST!>as A<B<*>><!>
 
     foo(a).b()
 }
@@ -21,7 +21,7 @@ class AOut<out X>
 fun <Y> foo(c: AOut<Y>): Y = TODO()
 
 fun <E> mainOut(a: AOut<E>) {
-    a as AOut<B<*>>
+    a <!UNCHECKED_CAST!>as AOut<B<*>><!>
 
     foo(a).b()
 }

compiler/testData/diagnostics/tests/inference/regressions/kt38691.fir.kt

@@ -1,14 +0,0 @@
-// !LANGUAGE: +NewInference
-// !DIAGNOSTICS: -UNUSED_PARAMETER -UNUSED_VARIABLE
-
-class Inv<T>
-fun <T> materializeInv() = Inv<T>()
-fun <X> foo(x: Inv<X>, y: X) = materializeInv<X>()
-fun <X> foo(x: Inv<X>, y: () -> X) = materializeInv<X>()
-
-fun <R> main(fn: () -> R) {
-    fun bar(): R = null as R
-    val x1 = foo<R>(materializeInv()) { fn() } // OVERLOAD_RESOLUTION_AMBIGUITY only in NI
-    val x2 = foo<R>(materializeInv(), fn) // OK
-    val x3 = foo<R>(materializeInv(), ::bar) // OK
-}

compiler/testData/diagnostics/tests/inference/regressions/kt38691.kt

@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 // !LANGUAGE: +NewInference
 // !DIAGNOSTICS: -UNUSED_PARAMETER -UNUSED_VARIABLE
 

compiler/testData/diagnostics/tests/inference/upperBounds/kt2856.fir.kt

@@ -1,20 +0,0 @@
-//KT-2856 Fix the getOrElse signature to be able to return any supertype of V
-package d
-
-import java.util.HashMap
-
-public inline fun <K,V1, V: V1> Map<K,V>.getOrElse1(key: K, defaultValue: ()-> V1) : V1 {
-    if (this.containsKey(key)) {
-        return this.get(key) as V
-    } else {
-        return defaultValue()
-    }
-}
-
-fun main() {
-    val map = HashMap<Int, Int>()
-    println(map.getOrElse1(2, { null })) // Error
-}
-
-//from standard library
-fun println(message : Any?) {}

compiler/testData/diagnostics/tests/inference/upperBounds/kt2856.kt

@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 //KT-2856 Fix the getOrElse signature to be able to return any supertype of V
 package d