[IR] Dump IdSignatures and mangled names in irText tests

The reason #1 for this feature is that we want to test IdSignatures
generated for declarations. Currently, there is no (easy) way to ensure
that a change in the signature building logic doesn't cause any breaking
changes wrt klibs.

Now, most IdSignatures include hashed mangled names in them, so even if
we catch a regression where the included hash changes, there would be no
way of knowing immediately what caused it, unless we'd also have mangled
names in the expectations.

The reason #2 is to test the manglers themselves. Currently, there are
no tests for them. They heavily duplicate each other, this is already
causing issues (see KT-57427) that would be very hard to catch without
these tests.

^KT-58238 Fixed

compiler/testData/ir/irText/lambdas/destructuringInLambda.sig.kt.txt

@@ -0,0 +1,98 @@
+// CHECK:
+//   Mangled name: {}fn
+//   Public signature: /fn|-1096960354582375131[0]
+var fn: Function1<A, Int>
+  // CHECK JVM_IR:
+  //   Mangled name: #<get-fn>(){}kotlin.Function1<A,kotlin.Int>
+  //   Public signature: /fn.<get-fn>|-1538543637358155392[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: #<get-fn>(){}
+  //   Public signature: /fn.<get-fn>|7436020190901948688[0]
+  get
+  // CHECK:
+  //   Mangled name: #<set-fn>(kotlin.Function1<A,kotlin.Int>){}
+  //   Public signature: /fn.<set-fn>|5076231225819362553[0]
+  set
+
+// CHECK:
+//   Mangled name: A
+//   Public signature: /A|null[0]
+data class A {
+  // CHECK:
+  //   Mangled name: A{}x
+  //   Public signature: /A.x|-8060530855978347579[0]
+  val x: Int
+    // CHECK JVM_IR:
+    //   Mangled name: A#<get-x>(){}kotlin.Int
+    //   Public signature: /A.x.<get-x>|4966956098150895696[0]
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: A#<get-x>(){}
+    //   Public signature: /A.x.<get-x>|1482705010654679335[0]
+    get
+
+  // CHECK:
+  //   Mangled name: A{}y
+  //   Public signature: /A.y|3625903257357557171[0]
+  val y: Int
+    // CHECK JVM_IR:
+    //   Mangled name: A#<get-y>(){}kotlin.Int
+    //   Public signature: /A.y.<get-y>|-6745575372101973707[0]
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: A#<get-y>(){}
+    //   Public signature: /A.y.<get-y>|-7902422373892128922[0]
+    get
+
+  // CHECK:
+  //   Mangled name: A#<init>(kotlin.Int;kotlin.Int){}
+  //   Public signature: /A.<init>|-7691762014320324121[0]
+  constructor(x: Int, y: Int) /* primary */
+  // CHECK JVM_IR:
+  //   Mangled name: A#component1(){}kotlin.Int
+  //   Public signature: /A.component1|-8217597213800111288[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: A#component1(){}
+  //   Public signature: /A.component1|162597135895221648[0]
+  operator fun component1(): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: A#component2(){}kotlin.Int
+  //   Public signature: /A.component2|-7444333055342785242[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: A#component2(){}
+  //   Public signature: /A.component2|3796717572321500973[0]
+  operator fun component2(): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: A#copy(kotlin.Int;kotlin.Int){}A
+  //   Public signature: /A.copy|1926272323689019234[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: A#copy(kotlin.Int;kotlin.Int){}
+  //   Public signature: /A.copy|4382504155595030584[0]
+  fun copy(x: Int, y: Int): A
+
+  // CHECK JVM_IR:
+  //   Mangled name: A#equals(kotlin.Any?){}kotlin.Boolean
+  //   Public signature: /A.equals|722809408929142791[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: A#equals(kotlin.Any?){}
+  //   Public signature: /A.equals|4638265728071529943[0]
+  override operator fun equals(other: Any?): Boolean
+
+  // CHECK JVM_IR:
+  //   Mangled name: A#hashCode(){}kotlin.Int
+  //   Public signature: /A.hashCode|-8048879360829830756[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: A#hashCode(){}
+  //   Public signature: /A.hashCode|3409210261493131192[0]
+  override fun hashCode(): Int
+
+  // CHECK JVM_IR:
+  //   Mangled name: A#toString(){}kotlin.String
+  //   Public signature: /A.toString|6958853723545266802[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: A#toString(){}
+  //   Public signature: /A.toString|-1522858123163872138[0]
+  override fun toString(): String
+
+}
+