FIR: Update integer literal-related tests

They started failing once we began reporting diagnostics from completion

^KT-46419 Relates

compiler/testData/ir/irText/expressions/primitivesImplicitConversions.kt

@@ -1,3 +1,4 @@
+// IGNORE_BACKEND_FIR: ANY
 val test1: Long = 42
 val test2: Short = 42
 val test3: Byte = 42
@@ -17,4 +18,4 @@ fun test() {
 
 fun testImplicitArguments(x: Long = 1.unaryMinus()) {}
 
-class TestImplicitArguments(val x: Long = 1.unaryMinus())
+class TestImplicitArguments(val x: Long = 1.unaryMinus())