[klib] Test signature descriptions in irText tests

KT-59486

compiler/testData/ir/irText/firProblems/OutBox.sig.kt.txt

@@ -5,24 +5,29 @@ class Box<out T : Foo> {
   // CHECK:
   //   Mangled name: Box{}foo
   //   Public signature: /Box.foo|1688079488202778848[0]
+  //   Public signature debug description: {}foo
   val foo: T
     // CHECK JVM_IR:
     //   Mangled name: Box#<get-foo>(){}1:0
     //   Public signature: /Box.foo.<get-foo>|3855223738271342790[0]
+    //   Public signature debug description: <get-foo>(){}1:0
     get
 
   // CHECK:
   //   Mangled name: Box#<init>(1:0){}
   //   Public signature: /Box.<init>|-8731461708390519279[0]
+  //   Public signature debug description: <init>(1:0){}
   constructor(foo: T) /* primary */
 
   // CHECK:
   //   Mangled name: Box{}str
   //   Public signature: /Box.str|4033248252607519654[0]
+  //   Public signature debug description: {}str
   val str: String
     // CHECK JVM_IR:
     //   Mangled name: Box#<get-str>(){}kotlin.String
     //   Public signature: /Box.str.<get-str>|7048381576567484853[0]
+    //   Public signature debug description: <get-str>(){}kotlin.String
     get(): String
 
 }