[klib] Test signature descriptions in irText tests

KT-59486

compiler/testData/ir/irText/expressions/multipleSmartCasts.sig.kt.txt

@@ -6,9 +6,11 @@ interface IC1 {
   // CHECK JVM_IR:
   //   Mangled name: IC1#component1(){}kotlin.Int
   //   Public signature: /IC1.component1|-8217597213800111288[0]
+  //   Public signature debug description: component1(){}kotlin.Int
   // CHECK JS_IR NATIVE:
   //   Mangled name: IC1#component1(){}
   //   Public signature: /IC1.component1|162597135895221648[0]
+  //   Public signature debug description: component1(){}
   abstract operator fun component1(): Int
 
 }
@@ -21,9 +23,11 @@ interface IC2 {
   // CHECK JVM_IR:
   //   Mangled name: IC2#component2(){}kotlin.String
   //   Public signature: /IC2.component2|1228864375093914597[0]
+  //   Public signature debug description: component2(){}kotlin.String
   // CHECK JS_IR NATIVE:
   //   Mangled name: IC2#component2(){}
   //   Public signature: /IC2.component2|3796717572321500973[0]
+  //   Public signature debug description: component2(){}
   abstract operator fun component2(): String
 
 }
@@ -31,5 +35,6 @@ interface IC2 {
 // CHECK:
 //   Mangled name: #test(kotlin.Any){}
 //   Public signature: /test|-7985792749252989017[0]
+//   Public signature debug description: test(kotlin.Any){}
 fun test(x: Any): Unit