FIR: Properly deserialize upper bounds of classes type parameters

^KT-46661 Fixed

compiler/testData/diagnostics/tests/recovery/namelessMembers.kt

@@ -1,4 +1,5 @@
 // FIR_IDENTICAL
+// FIR_IDE_IGNORE
 // !DIAGNOSTICS: -REDECLARATION -DUPLICATE_CLASS_NAMES
 
 class C {
@@ -15,4 +16,4 @@ class C {
 
 class C1<<!SYNTAX!>in<!>> {}
 
-class C2(val<!SYNTAX!><!>) {}
+class C2(val<!SYNTAX!><!>) {}

compiler/testData/diagnostics/tests/recovery/namelessToplevelDeclarations.fir.kt

@@ -21,6 +21,6 @@ object<!SYNTAX!><!> {
 
 }
 
-enum class<!SYNTAX!><!> {}
+<!UPPER_BOUND_VIOLATED!>enum class<!SYNTAX!><!> {}<!>
 
 annotation class<!SYNTAX!><!> {}