[FIR] Add CAST_NEVER_SUCCEEDS

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

@@ -9,4 +9,4 @@ fun <T> foo2(): T = TODO()
 val test = <!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>foo2<!>().plus("") <!USELESS_CAST!>as String<!>
 
 fun <T> T.bar() = this
-val barTest = "".bar() as Number
+val barTest = "".bar() <!CAST_NEVER_SUCCEEDS!>as<!> Number

compiler/testData/diagnostics/tests/inference/nothingType/reportImplicitNothingOnlyForOwnTypeParameters.fir.kt

@@ -1,11 +0,0 @@
-fun <R> runCatching(block: () -> R) = null as Result<R>
-
-class Result<out T> {
-    fun getOrNull(): T? = null
-}
-
-fun main() {
-    runCatching {
-        null
-    }.getOrNull() // don't report IMPLICIT_NOTHING_TYPE_ARGUMENT_IN_RETURN_POSITION
-}

compiler/testData/diagnostics/tests/inference/nothingType/reportImplicitNothingOnlyForOwnTypeParameters.kt

@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 fun <R> runCatching(block: () -> R) = null <!CAST_NEVER_SUCCEEDS!>as<!> Result<R>
 
 class Result<out T> {

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

@@ -52,7 +52,7 @@ fun test() {
     if (<!USELESS_IS_CHECK!>x11 is Foo<<!UNRESOLVED_REFERENCE!>_<!>><!>) { }
 
     x10 as <!UNRESOLVED_REFERENCE!>_<!>
-    x10 as Foo<<!UNRESOLVED_REFERENCE!>_<!>>
+    x10 <!CAST_NEVER_SUCCEEDS!>as<!> Foo<<!UNRESOLVED_REFERENCE!>_<!>>
 
     val x12: Foo<@<!UNDERSCORE_USAGE_WITHOUT_BACKTICKS, UNRESOLVED_REFERENCE!>_<!> Int>? = null
     val x13: Foo<@<!UNDERSCORE_USAGE_WITHOUT_BACKTICKS, UNRESOLVED_REFERENCE!>_<!>() Int>? = null