JS: inliner supports extra argument caused by suspend conversions

compiler/testData/codegen/box/callableReference/adaptedReferences/suspendConversion/inlineSimple.kt

@@ -2,7 +2,6 @@
 // WITH_RUNTIME
 // WITH_COROUTINES
 // IGNORE_BACKEND_FIR: JVM_IR
-// IGNORE_BACKEND: JS
 
 import helpers.*
 import kotlin.coroutines.*

js/js.inliner/src/org/jetbrains/kotlin/js/inline/FunctionInlineMutator.kt

@@ -46,9 +46,17 @@ private constructor(
     }
 
     private fun process() {
-        val arguments = getArguments()
+        var arguments = getArguments()
         val parameters = getParameters()
 
+        if (arguments.size > parameters.size) {
+            // Due to suspend conversions it is possible to have an extra argument, e.g. `fn($this$)` for `function fn() {...}`
+            // In such cases all missing arguments for default parameters are passed as `void 0` explicitly.
+            // Thus it is safe to drop it.
+            assert(arguments.size == parameters.size + 1) { "arguments.size (${arguments.size}) may only exceed the parameters.size (${parameters.size}) by one and only in case of suspend conversions" }
+            arguments = arguments.subList(0, parameters.size)
+        }
+
         removeDefaultInitializers(arguments, parameters, body)
         aliasArgumentsIfNeeded(namingContext, arguments, parameters, call.source)
         renameLocalNames(namingContext, invokedFunction)