[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/declarations/annotations/genericAnnotationClasses.kt

@@ -1,3 +1,6 @@
+// SKIP_SIGNATURE_DUMP
+// ^ KT-57429, different types in annotations generated by K1 and K2
+
 package ann
 
 annotation class Test1<T>(val x: Int)
@@ -22,4 +25,4 @@ annotation class Test5<T>(vararg val xs: Test3<T, C<T>>)
 @Test3<String, C<String>>(Test1(39))
 @Test4([Test3(Test1(40)), Test3(Test1(50)), Test3(Test1(60))])
 @Test5<ARG>(*arrayOf(Test3(Test1(70))), *arrayOf(Test3(Test1(80))))
-class CC
+class CC