Raw FIR: don't check class kind for data / inline modifiers

compiler/fir/raw-fir/light-tree2fir/src/org/jetbrains/kotlin/fir/lightTree/converter/DeclarationsConverter.kt

@@ -378,8 +378,8 @@ class DeclarationsConverter(
                     isActual = modifiers.hasActual()
                     isInner = modifiers.isInner()
                     isCompanion = modifiers.isCompanion() && classKind == ClassKind.OBJECT
-                    isData = modifiers.isDataClass() && classKind != ClassKind.OBJECT
-                    isInline = modifiers.isInlineClass() && classKind != ClassKind.OBJECT
+                    isData = modifiers.isDataClass()
+                    isInline = modifiers.isInlineClass()
                 }
 
                 val classBuilder = if (status.modality == Modality.SEALED) {

compiler/fir/raw-fir/psi2fir/src/org/jetbrains/kotlin/fir/builder/RawFirBuilder.kt

@@ -659,8 +659,8 @@ class RawFirBuilder(
                     isActual = classOrObject.hasActualModifier()
                     isInner = classOrObject.hasModifier(INNER_KEYWORD)
                     isCompanion = (classOrObject as? KtObjectDeclaration)?.isCompanion() == true
-                    isData = (classOrObject as? KtClass)?.isData() == true
-                    isInline = (classOrObject as? KtClass)?.hasModifier(INLINE_KEYWORD) == true
+                    isData = classOrObject.hasModifier(DATA_KEYWORD)
+                    isInline = classOrObject.hasModifier(INLINE_KEYWORD)
                 }
                 withCapturedTypeParameters {
                     if (!status.isInner) context.capturedTypeParameters = context.capturedTypeParameters.clear()