[klib] Test signature descriptions in irText tests

KT-59486

compiler/testData/ir/irText/expressions/funInterface/basicFunInterfaceConversion.sig.kt.txt

@@ -6,9 +6,11 @@ fun interface Foo {
   // CHECK JVM_IR:
   //   Mangled name: Foo#invoke(){}kotlin.String
   //   Public signature: /Foo.invoke|8861605044563078664[0]
+  //   Public signature debug description: invoke(){}kotlin.String
   // CHECK JS_IR NATIVE:
   //   Mangled name: Foo#invoke(){}
   //   Public signature: /Foo.invoke|-4663091332620260873[0]
+  //   Public signature debug description: invoke(){}
   abstract fun invoke(): String
 
 }
@@ -16,17 +18,21 @@ fun interface Foo {
 // CHECK JVM_IR:
 //   Mangled name: #foo(Foo){}kotlin.String
 //   Public signature: /foo|-5888774885663875480[0]
+//   Public signature debug description: foo(Foo){}kotlin.String
 // CHECK JS_IR NATIVE:
 //   Mangled name: #foo(Foo){}
 //   Public signature: /foo|-8233162121880232317[0]
+//   Public signature debug description: foo(Foo){}
 fun foo(f: Foo): String
 
 // CHECK JVM_IR:
 //   Mangled name: #test(){}kotlin.String
 //   Public signature: /test|-7008832412320199001[0]
+//   Public signature debug description: test(){}kotlin.String
 // CHECK JS_IR NATIVE:
 //   Mangled name: #test(){}
 //   Public signature: /test|6620506149988718649[0]
+//   Public signature debug description: test(){}
 fun test(): String
   // CHECK JVM_IR:
   //   Mangled name: #test(){}kotlin.String#<anonymous>#static(){}kotlin.String