JVM_IR: Do not duplicate inline suspend functions with reified type parameters

They are inline-only.
Generate $$forInline versions of inline suspend functions as private.
This way, there is no nullability annotation on there parameters and return
values. Unfortunately, old BE does generate them.
 #KT-37088 Fixed

compiler/testData/codegen/bytecodeListing/inline/simpleNamed.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JVM_IR
 // WITH_RUNTIME
 
 suspend inline fun simple() {}