[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/js/dynamic/implicitCastToDynamic.sig.kt.txt

@@ -0,0 +1,61 @@
+// CHECK:
+//   Mangled name: {}d1
+//   Public signature: /d1|-2026668325688559202[0]
+val d1: dynamic
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: #<get-d1>(){}
+  //   Public signature: /d1.<get-d1>|3799770350020755350[0]
+  get
+
+// CHECK:
+//   Mangled name: {}p
+//   Public signature: /p|6715504260787941082[0]
+val p: Int
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: #<get-p>(){}
+  //   Public signature: /p.<get-p>|-1162552463316289847[0]
+  get
+
+// CHECK:
+//   Mangled name: {}d2
+//   Public signature: /d2|-7196645270133305146[0]
+var d2: dynamic
+  // CHECK JS_IR NATIVE:
+  //   Mangled name: #<get-d2>(){}
+  //   Public signature: /d2.<get-d2>|-1981535204947042648[0]
+  get
+  // CHECK:
+  //   Mangled name: #<set-d2>(<dynamic>){}
+  //   Public signature: /d2.<set-d2>|8009685074731428505[0]
+  set
+
+// CHECK:
+//   Mangled name: #test1(kotlin.String){}
+//   Public signature: /test1|3813564455063048258[0]
+fun test1(s: String): Unit
+
+// CHECK:
+//   Mangled name: #test2(kotlin.Any){}
+//   Public signature: /test2|-8648451680149324146[0]
+fun test2(a: Any): Unit
+
+// CHECK:
+//   Mangled name: #test3(kotlin.Any?){}
+//   Public signature: /test3|7681112685114804269[0]
+fun test3(a: Any?): Unit
+
+// CHECK:
+//   Mangled name: #test4(kotlin.Any;kotlin.String;kotlin.Any?){}
+//   Public signature: /test4|-3496354737059131368[0]
+fun test4(a: Any, s: String, na: Any?): Unit
+
+// CHECK:
+//   Mangled name: #test5(kotlin.Any;kotlin.String;kotlin.Any?){}
+//   Public signature: /test5|-54558059321704654[0]
+fun test5(a: Any, s: String, na: Any?): Unit
+
+// CHECK JS_IR NATIVE:
+//   Mangled name: #withDynamic(<dynamic>){}
+//   Public signature: /withDynamic|4181319760857558891[0]
+fun withDynamic(d: dynamic): dynamic
+