[LL] Add getOrBuildFir test for deserialized enum entry annotation argument

- The `getOrBuildFir` test clearly shows the difference between the
  unresolved enum entry and the resolved one (see the next commit).

^KT-63330

analysis/low-level-api-fir/testData/getOrBuildFir/deserialized/annotationWithEnumEntryArgument.kt

@@ -0,0 +1,25 @@
+// KT-63330
+// SKIP_WHEN_OUT_OF_CONTENT_ROOT
+
+// MODULE: library1
+// MODULE_KIND: LibraryBinary
+// FILE: EnumClass.kt
+enum class EnumClass {
+    First, Second
+}
+
+@Target(AnnotationTarget.TYPE)
+annotation class Anno(val enumEntry: EnumClass)
+
+// MODULE: library2(library1)
+// MODULE_KIND: LibraryBinary
+// FILE: Usage.kt
+class Usage
+
+val usage: @Anno(EnumClass.First) Usage = Usage()
+
+// MODULE: main(library1, library2)
+// FILE: main.kt
+fun foo() {
+    <expr>val x = usage</expr>
+}

analysis/low-level-api-fir/testData/getOrBuildFir/deserialized/annotationWithEnumEntryArgument.txt

@@ -0,0 +1,12 @@
+KT element: KtProperty
+FIR element: FirPropertyImpl
+FIR source kind: KtRealSourceElementKind
+
+FIR element rendered:
+[ResolvedTo(BODY_RESOLVE)] lval x: R|@R|Anno|(enumEntry = )  Usage| = R|/usage|
+
+FIR FILE:
+FILE: [ResolvedTo(IMPORTS)] main.kt
+    public final [ResolvedTo(BODY_RESOLVE)] fun foo(): R|kotlin/Unit| {
+        [ResolvedTo(BODY_RESOLVE)] lval x: R|@R|Anno|(enumEntry = )  Usage| = R|/usage|
+    }