JS: report inline suspend functions to IC

* Also inline suspend lambda'a
* Also use correct JsName's in exported suspend inline fun's
* Also use less unused imports

compiler/testData/codegen/boxInline/suspend/stateMachine/numberOfSuspentions.kt

@@ -4,7 +4,6 @@
 // WITH_RUNTIME
 // WITH_COROUTINES
 // NO_CHECK_LAMBDA_INLINING
-// IGNORE_BACKEND: JS
 
 suspend inline fun crossinlineMe(crossinline c: suspend () -> Unit) {
     val l: suspend () -> Unit = { c() }