KT-59325 [SLC] Fix generation of fields from companion objects

analysis/symbol-light-classes/src/org/jetbrains/kotlin/light/classes/symbol/classes/SymbolLightClassForNamedClassLike.kt

@@ -21,8 +21,8 @@ import org.jetbrains.kotlin.asJava.elements.KtLightField
 import org.jetbrains.kotlin.asJava.elements.KtLightMethod
 import org.jetbrains.kotlin.lexer.KtTokens
 import org.jetbrains.kotlin.light.classes.symbol.annotations.hasJvmStaticAnnotation
+import org.jetbrains.kotlin.light.classes.symbol.fields.SymbolLightField
 import org.jetbrains.kotlin.light.classes.symbol.fields.SymbolLightFieldForObject
-import org.jetbrains.kotlin.light.classes.symbol.fields.SymbolLightFieldForProperty
 import org.jetbrains.kotlin.light.classes.symbol.isConstOrJvmField
 import org.jetbrains.kotlin.light.classes.symbol.modifierLists.GranularModifiersBox
 import org.jetbrains.kotlin.psi.KtClassOrObject
@@ -99,6 +99,7 @@ abstract class SymbolLightClassForNamedClassLike : SymbolLightClassForClassLike<
         result: MutableList<KtLightField>,
         classOrObjectSymbol: KtNamedClassOrObjectSymbol,
     ) {
+        val nameGenerator = SymbolLightField.FieldNameGenerator()
         classOrObjectSymbol.companionObject
             ?.getDeclaredMemberScope()
             ?.getCallableSymbols()
@@ -106,14 +107,12 @@ abstract class SymbolLightClassForNamedClassLike : SymbolLightClassForClassLike<
             ?.applyIf(isInterface) {
                 filter { it.isConstOrJvmField }
             }
-            ?.mapTo(result) {
-                SymbolLightFieldForProperty(
-                    ktAnalysisSession = this@KtAnalysisSession,
-                    propertySymbol = it,
-                    fieldName = it.name.asString(),
-                    containingClass = this,
-                    lightMemberOrigin = null,
+            ?.forEach {
+                createField(
+                    declaration = it,
+                    nameGenerator = nameGenerator,
                     isStatic = true,
+                    result = result
                 )
             }
     }

compiler/testData/asJava/lightClasses/lightClassByFqName/compilationErrors/TraitClassObjectField.java

@@ -2,16 +2,16 @@ public abstract interface TraitClassObjectField /* TraitClassObjectField*/ {
   @org.jetbrains.annotations.NotNull()
   public static final TraitClassObjectField.Companion Companion;
 
-  @org.jetbrains.annotations.Nullable()
+  @org.jetbrains.annotations.NotNull()
   public static final java.lang.String x = "" /* initializer type: java.lang.String */ /* constant value  */;
 
   public static final class Companion /* TraitClassObjectField.Companion*/ {
+    @org.jetbrains.annotations.NotNull()
+    public static final java.lang.String x = "" /* initializer type: java.lang.String */ /* constant value  */;
+
     @org.jetbrains.annotations.Nullable()
     private static final java.lang.String y;
 
-    @org.jetbrains.annotations.Nullable()
-    public static final java.lang.String x = "" /* initializer type: java.lang.String */ /* constant value  */;
-
     private  Companion();//  .ctor()
   }
-}
+}

compiler/testData/asJava/lightClasses/lightClassByFqName/compilationErrors/TraitClassObjectField.kt

@@ -2,7 +2,7 @@
 
 interface TraitClassObjectField {
     companion object {
-        const val x: String? = ""
+        const val x: String = ""
         private val y: String? = { "" }()
     }
 }

compiler/testData/asJava/lightClasses/lightClassByPsi/objects.java

@@ -1,10 +1,4 @@
 public final class C /* C*/ {
-  @org.jetbrains.annotations.NotNull()
-  private static java.lang.String c1;
-
-  @org.jetbrains.annotations.NotNull()
-  private static java.lang.String c;
-
   @org.jetbrains.annotations.NotNull()
   private static java.lang.String x = "" /* initializer type: java.lang.String */;