[FIR2IR] Rename getIrEnumEntry to getOrCreateIrEnumEntry

This is needed for sake of naming consistency.

compiler/fir/fir2ir/src/org/jetbrains/kotlin/fir/backend/Fir2IrClassifierStorage.kt

@@ -341,7 +341,7 @@ class Fir2IrClassifierStorage(
         return enumEntryCache[enumEntry]
     }
 
-    fun getIrEnumEntry(
+    fun getOrCreateIrEnumEntry(
         enumEntry: FirEnumEntry,
         irParent: IrClass,
         predefinedOrigin: IrDeclarationOrigin? = null,

compiler/fir/fir2ir/src/org/jetbrains/kotlin/fir/backend/Fir2IrConverter.kt

@@ -487,7 +487,7 @@ class Fir2IrConverter(
                 null
             }
             is FirEnumEntry -> {
-                classifierStorage.getIrEnumEntry(declaration, parent as IrClass)
+                classifierStorage.getOrCreateIrEnumEntry(declaration, parent as IrClass)
             }
             is FirAnonymousInitializer -> {
                 declarationStorage.getOrCreateIrAnonymousInitializer(declaration, parent as IrClass)

compiler/fir/fir2ir/src/org/jetbrains/kotlin/fir/backend/Fir2IrDeclarationStorage.kt

@@ -841,7 +841,7 @@ class Fir2IrDeclarationStorage(
                 val firProviderForSymbol = firVariableSymbol.moduleData.session.firProvider
                 val containingFile = firProviderForSymbol.getFirCallableContainerFile(firVariableSymbol)
 
-                classifierStorage.getIrEnumEntry(
+                classifierStorage.getOrCreateIrEnumEntry(
                     firDeclaration,
                     irParent = irParentClass,
                     predefinedOrigin = if (containingFile != null) IrDeclarationOrigin.DEFINED else irParentClass.origin

compiler/fir/fir2ir/src/org/jetbrains/kotlin/fir/backend/FirIrProvider.kt

@@ -166,7 +166,7 @@ class FirIrProvider(val components: Fir2IrComponents) : IrProvider {
             SymbolKind.CLASS_SYMBOL -> {
                 classifierStorage.getOrCreateIrClass((firDeclaration as FirRegularClass).symbol)
             }
-            SymbolKind.ENUM_ENTRY_SYMBOL -> classifierStorage.getIrEnumEntry(
+            SymbolKind.ENUM_ENTRY_SYMBOL -> classifierStorage.getOrCreateIrEnumEntry(
                 firDeclaration as FirEnumEntry, parent as IrClass
             )
             SymbolKind.CONSTRUCTOR_SYMBOL -> {