FIR2IR: Fix incorrect conversion of adapted callable references with receiver

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

@@ -1,6 +1,5 @@
 // DONT_TARGET_EXACT_BACKEND: WASM
 // WASM_MUTE_REASON: BINDING_RECEIVERS
-// IGNORE_BACKEND_FIR: JVM_IR
 
 import Host.foo
 

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

@@ -0,0 +1,10 @@
+// TARGET_BACKEND: JVM
+// FULL_JDK
+// WITH_RUNTIME
+
+fun MutableSet<CharSequence>.foo(s: CharSequence): Set<CharSequence> {
+    s.also(::add)
+    return this
+}
+
+fun box(): String = mutableSetOf<CharSequence>().foo("OK").single() as String