[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/contextReceivers/contextualInlineCall.kt

@@ -1,6 +1,9 @@
 // !LANGUAGE: +ContextReceivers
 // TARGET_BACKEND: JVM_IR
 
+// MUTE_SIGNATURE_COMPARISON_K2: ANY
+// ^ KT-57435
+
 class Context {
     fun c() = 1
 }
@@ -34,4 +37,4 @@ fun box(): String = with(Context()) {
         result += 1.testInlineWithExtensionAndMultipleContextsAndArgs()
     }
     return if (result == 23) "OK" else "fail"
-}
+}