JVM_IR: Implement some BE diagnostics

TODO proper diagnostics tests with BE diagnostics

compiler/testData/cli/jvm/inlineCycle.kt

@@ -1,14 +1,17 @@
-inline fun a(l: () -> Unit) {
-    b(l)
+inline fun a(q: () -> Unit) {
+    b(q)
 
-    //check that nested not recognized as cycle
+    // check that nested not recognized as cycle
     c {
         c {
 
         }
     }
+
+    withDefaults()
 }
 
+inline fun withDefaults(x: Int = 1) = x * 2
 
 inline fun b(p: () -> Unit) {
     p()