[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/stubs/genericClassInDifferentModule.sig.kt.txt

@@ -0,0 +1,120 @@
+// MODULE: m1
+// FILE: genericClassInDifferentModule_m1.kt
+
+// CHECK:
+//   Mangled name: Base
+//   Public signature: /Base|null[0]
+abstract class Base<T : Any?> {
+  // CHECK:
+  //   Mangled name: Base{}x
+  //   Public signature: /Base.x|-8060530855978347579[0]
+  val x: T
+    // CHECK JVM_IR:
+    //   Mangled name: Base#<get-x>(){}1:0
+    //   Public signature: /Base.x.<get-x>|-8893883356128097563[0]
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: Base#<get-x>(){}
+    //   Public signature: /Base.x.<get-x>|1482705010654679335[0]
+    get
+
+  // CHECK:
+  //   Mangled name: Base#<init>(1:0){}
+  //   Public signature: /Base.<init>|-8731461708390519279[0]
+  constructor(x: T) /* primary */
+
+  // CHECK JVM_IR:
+  //   Mangled name: Base#foo(0:0){0§<kotlin.Any?>}1:0
+  //   Public signature: /Base.foo|8673945311830780726[0]
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: Base#foo(0:0){0§<kotlin.Any?>}
+  //   Public signature: /Base.foo|-6838606926256314363[0]
+  abstract fun <Y : Any?> foo(y: Y): T
+
+  // CHECK:
+  //   Mangled name: Base{}bar
+  //   Public signature: /Base.bar|-7864284097863469857[0]
+  abstract var bar: T
+    // CHECK JVM_IR:
+    //   Mangled name: Base#<get-bar>(){}1:0
+    //   Public signature: /Base.bar.<get-bar>|7899956589744407340[0]
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: Base#<get-bar>(){}
+    //   Public signature: /Base.bar.<get-bar>|6880642144337645699[0]
+    abstract get
+    // CHECK:
+    //   Mangled name: Base#<set-bar>(1:0){}
+    //   Public signature: /Base.bar.<set-bar>|3083825024913650500[0]
+    abstract set
+
+  // CHECK:
+  //   Mangled name: Base@0:0{0§<kotlin.Any?>}exn
+  //   Public signature: /Base.exn|2371047114698435273[0]
+  abstract var <Z : Any?> Z.exn: T
+    // CHECK JVM_IR:
+    //   Mangled name: Base#<get-exn>@0:0(){0§<kotlin.Any?>}1:0
+    //   Public signature: /Base.exn.<get-exn>|6217753676739394662[0]
+    // CHECK JS_IR NATIVE:
+    //   Mangled name: Base#<get-exn>@0:0(){0§<kotlin.Any?>}
+    //   Public signature: /Base.exn.<get-exn>|-202876889853335253[0]
+    abstract get
+    // CHECK:
+    //   Mangled name: Base#<set-exn>@0:0(1:0){0§<kotlin.Any?>}
+    //   Public signature: /Base.exn.<set-exn>|5747714515092438414[0]
+    abstract set
+
+}
+
+// MODULE: m2
+// FILE: genericClassInDifferentModule_m2.kt
+
+// CHECK:
+//   Mangled name: Derived1
+//   Public signature: /Derived1|null[0]
+class Derived1<T : Any?> : Base<T> {
+  // CHECK:
+  //   Mangled name: Derived1{}bar
+  //   Public signature: /Derived1.bar|-7864284097863469857[0]
+  override var bar: T
+    // CHECK JVM_IR:
+    //   Mangled name: Derived1#<get-bar>(){}1:0
+    //   Public signature: /Derived1.bar.<get-bar>|7899956589744407340[0]
+    override get
+    // CHECK:
+    //   Mangled name: Derived1#<set-bar>(1:0){}
+    //   Public signature: /Derived1.bar.<set-bar>|3083825024913650500[0]
+    override set
+
+  // CHECK:
+  //   Mangled name: Derived1#<init>(1:0){}
+  //   Public signature: /Derived1.<init>|-8731461708390519279[0]
+  constructor(x: T) /* primary */
+
+  // CHECK JVM_IR:
+  //   Mangled name: Derived1#foo(0:0){0§<kotlin.Any?>}1:0
+  //   Public signature: /Derived1.foo|8673945311830780726[0]
+  override fun <Y : Any?> foo(y: Y): T
+
+  // CHECK:
+  //   Mangled name: Derived1{}x
+  //   Public signature: /Derived1.x|-8060530855978347579[0]
+  /* fake */ override val x: T
+    // CHECK JVM_IR:
+    //   Mangled name: Derived1#<get-x>(){}1:0
+    //   Public signature: /Derived1.x.<get-x>|-8893883356128097563[0]
+    /* fake */ override get(): T
+
+  // CHECK:
+  //   Mangled name: Derived1@0:0{0§<kotlin.Any?>}exn
+  //   Public signature: /Derived1.exn|2371047114698435273[0]
+  override var <Z : Any?> Z.exn: T
+    // CHECK JVM_IR:
+    //   Mangled name: Derived1#<get-exn>@0:0(){0§<kotlin.Any?>}1:0
+    //   Public signature: /Derived1.exn.<get-exn>|6217753676739394662[0]
+    override get(): T
+    // CHECK:
+    //   Mangled name: Derived1#<set-exn>@0:0(1:0){0§<kotlin.Any?>}
+    //   Public signature: /Derived1.exn.<set-exn>|5747714515092438414[0]
+    override set(value: T): Unit
+
+}
+