FIR: account for vararg when creating KFunction type for callable reference

compiler/testData/codegen/box/callableReference/adaptedReferences/bothWithCoercionToUnit.kt

@@ -1,5 +1,4 @@
 // !LANGUAGE: +NewInference +FunctionReferenceWithDefaultValueAsOtherType
-// IGNORE_BACKEND_FIR: JVM_IR
 
 fun foo(s: String = "kotlin", vararg t: String): Boolean {
     if (s != "kotlin") throw AssertionError(s)

compiler/testData/codegen/box/callableReference/adaptedReferences/boundReferences.kt

@@ -1,5 +1,4 @@
 // !LANGUAGE: +NewInference +FunctionReferenceWithDefaultValueAsOtherType
-// IGNORE_BACKEND_FIR: JVM_IR
 // WITH_RUNTIME
 
 import kotlin.test.assertEquals

compiler/testData/codegen/box/callableReference/adaptedReferences/defaultAfterVararg.kt

@@ -1,5 +1,4 @@
 // !LANGUAGE: +NewInference +FunctionReferenceWithDefaultValueAsOtherType
-// IGNORE_BACKEND_FIR: JVM_IR
 
 fun foo(vararg a: String, result: String = "OK"): String =
         if (a.size == 0) result else "Fail"

compiler/testData/codegen/box/callableReference/adaptedReferences/emptyVarargAndDefault.kt

@@ -1,5 +1,4 @@
 // !LANGUAGE: +NewInference +FunctionReferenceWithDefaultValueAsOtherType
-// IGNORE_BACKEND_FIR: JVM_IR
 
 fun foo(x: String = "O", vararg y: String): String =
         if (y.size == 0) x + "K" else "Fail"

compiler/testData/codegen/box/callableReference/adaptedReferences/inlineBound.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 
 inline fun foo(x: () -> Unit): String {
     x()

compiler/testData/codegen/box/callableReference/adaptedReferences/inlineVarargAndDefault.kt

@@ -1,5 +1,4 @@
 // !LANGUAGE: +NewInference +FunctionReferenceWithDefaultValueAsOtherType
-// IGNORE_BACKEND_FIR: JVM_IR
 
 fun foo(vararg l: Long, s: String = "OK"): String =
         if (l.size == 0) s else "Fail"

compiler/testData/codegen/box/callableReference/adaptedReferences/manyDefaultsAndVararg.kt

@@ -1,5 +1,4 @@
 // !LANGUAGE: +NewInference +FunctionReferenceWithDefaultValueAsOtherType
-// IGNORE_BACKEND_FIR: JVM_IR
 // WITH_RUNTIME
 
 import kotlin.test.assertEquals

compiler/testData/codegen/box/callableReference/adaptedReferences/simpleEmptyVararg.kt

@@ -1,5 +1,4 @@
 // !LANGUAGE: +NewInference
-// IGNORE_BACKEND_FIR: JVM_IR
 
 fun foo(x: String, vararg y: String): String =
         if (y.size == 0) x + "K" else "Fail"

compiler/testData/codegen/box/callableReference/adaptedReferences/unboundReferences.kt

@@ -1,5 +1,4 @@
 // !LANGUAGE: +NewInference +FunctionReferenceWithDefaultValueAsOtherType
-// IGNORE_BACKEND_FIR: JVM_IR
 // WITH_RUNTIME
 
 import kotlin.test.assertEquals

compiler/testData/codegen/box/callableReference/equality/varargWithDefaults.kt

@@ -1,6 +1,5 @@
 // IGNORE_BACKEND: JS, JS_IR, NATIVE
 // IGNORE_BACKEND: JS_IR_ES6
-// IGNORE_BACKEND_FIR: JVM_IR
 // FILE: test.kt
 
 fun checkEqual(x: Any, y: Any) {

compiler/testData/codegen/box/callableReference/kt37604.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 
 fun useUnit(fn: () -> Unit) {
     fn.invoke()