Safely unfold callable reference instruction in interpreter

There was an assumption that if receiver exists then parameter will
also exist. This is not true for references marked with `JvmStatic`.
Later in `JvmStaticInObjectLowering` dispatch receiver may be dropped.

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/util/IrUtils.kt

@@ -108,12 +108,12 @@ fun IrMemberAccessExpression<*>.getArgumentsWithIr(): List<Pair<IrValueParameter
         else -> error(this)
     }
 
-    dispatchReceiver?.let {
-        res += (irFunction.dispatchReceiverParameter!! to it)
+    dispatchReceiver?.let { arg ->
+        irFunction.dispatchReceiverParameter?.let { parameter -> res += (parameter to arg) }
     }
 
-    extensionReceiver?.let {
-        res += (irFunction.extensionReceiverParameter!! to it)
+    extensionReceiver?.let { arg ->
+        irFunction.extensionReceiverParameter?.let { parameter -> res += (parameter to arg) }
     }
 
     irFunction.valueParameters.forEachIndexed { index, it ->