[klib] Test signature descriptions in irText tests

KT-59486

compiler/testData/ir/irText/declarations/primaryCtorDefaultArguments.sig.kt.txt

@@ -5,18 +5,22 @@ class Test {
   // CHECK:
   //   Mangled name: Test{}x
   //   Public signature: /Test.x|-8060530855978347579[0]
+  //   Public signature debug description: {}x
   val x: Int
     // CHECK JVM_IR:
     //   Mangled name: Test#<get-x>(){}kotlin.Int
     //   Public signature: /Test.x.<get-x>|4966956098150895696[0]
+    //   Public signature debug description: <get-x>(){}kotlin.Int
     // CHECK JS_IR NATIVE:
     //   Mangled name: Test#<get-x>(){}
     //   Public signature: /Test.x.<get-x>|1482705010654679335[0]
+    //   Public signature debug description: <get-x>(){}
     get
 
   // CHECK:
   //   Mangled name: Test#<init>(kotlin.Int){}
   //   Public signature: /Test.<init>|-5182794243525578284[0]
+  //   Public signature debug description: <init>(kotlin.Int){}
   constructor(x: Int) /* primary */
 
 }