[FIR] Report UNSUPPORTED for default value in function type

compiler/testData/diagnostics/tests/DefaultValueForParameterInFunctionType.fir.kt

@@ -1,20 +0,0 @@
-// !DIAGNOSTICS: -UNUSED_PARAMETER -UNUSED_VARIABLE
-
-fun f(x: Int = 0) {}
-
-val inVal: (x: Int = 0)->Unit = {}
-
-fun inParam(fn: (x: Int = 0)->Unit) {}
-
-fun inParamNested(fn1: (fn2: (n: Int = 0)->Unit)->Unit) {}
-
-fun inReturn(): (x: Int = 0)->Unit = {}
-
-class A : (Int)->Unit {
-    override fun invoke(p1: Int) {
-        var lambda: (x: Int = 0)->Unit = {}
-    }
-
-    val prop: (x: Int = 0)->Unit
-        get(): (x: Int = 0)->Unit = {}
-}

compiler/testData/diagnostics/tests/DefaultValueForParameterInFunctionType.kt

@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 // !DIAGNOSTICS: -UNUSED_PARAMETER -UNUSED_VARIABLE
 
 fun f(x: Int = 0) {}