Drop KtLightClass#getFqName() and some usages of classFqName in KtLightClassForDecompiledDeclaration

compiler/light-classes/src/org/jetbrains/kotlin/asJava/classes/FakeLightClassForFileOfPackage.java

@@ -26,7 +26,6 @@ import org.jetbrains.annotations.Nullable;
 import org.jetbrains.kotlin.asJava.KtJavaMirrorMarker;
 import org.jetbrains.kotlin.asJava.finder.JavaElementFinder;
 import org.jetbrains.kotlin.idea.KotlinLanguage;
-import org.jetbrains.kotlin.name.FqName;
 import org.jetbrains.kotlin.psi.KtClassOrObject;
 import org.jetbrains.kotlin.psi.KtFile;
 
@@ -71,13 +70,6 @@ public class FakeLightClassForFileOfPackage extends AbstractLightClass implement
         return false;
     }
 
-
-    @NotNull
-    @Override
-    public FqName getFqName() {
-        return delegate.getFqName();
-    }
-
     @NotNull
     @Override
     public PsiClass getDelegate() {

compiler/light-classes/src/org/jetbrains/kotlin/asJava/classes/KtLightClass.kt

@@ -21,6 +21,4 @@ import org.jetbrains.kotlin.asJava.elements.KtLightDeclaration
 import org.jetbrains.kotlin.name.FqName
 import org.jetbrains.kotlin.psi.KtClassOrObject
 
-interface KtLightClass : PsiClass, KtLightDeclaration<KtClassOrObject, PsiClass> {
-    fun getFqName(): FqName
-}
+interface KtLightClass : PsiClass, KtLightDeclaration<KtClassOrObject, PsiClass>

compiler/light-classes/src/org/jetbrains/kotlin/asJava/classes/KtLightClassForFacade.kt

@@ -106,7 +106,8 @@ class KtLightClassForFacade private constructor(
 
     override val kotlinOrigin: KtClassOrObject? get() = null
 
-    override fun getFqName(): FqName = facadeClassFqName
+    val fqName: FqName
+        get() = facadeClassFqName
 
     override fun getModifierList() = modifierList
 

compiler/light-classes/src/org/jetbrains/kotlin/asJava/classes/KtLightClassForInterfaceDefaultImpls.kt

@@ -27,6 +27,7 @@ class KtLightClassForInterfaceDefaultImpls(
 : KtLightClassForSourceDeclaration({ classFqName }, classOrObject){
     override fun getQualifiedName(): String = classFqName.asString()
 
+    override fun getName() = JvmAbi.DEFAULT_IMPLS_CLASS_NAME
     override fun getParent() = containingClass
 
     override fun copy(): PsiElement {

compiler/light-classes/src/org/jetbrains/kotlin/asJava/classes/KtLightClassForSourceDeclaration.kt

@@ -74,8 +74,6 @@ abstract class KtLightClassForSourceDeclaration(
 
     override val kotlinOrigin: KtClassOrObject = classOrObject
 
-    override fun getFqName(): FqName = classFqName
-
     abstract override fun copy(): PsiElement
     abstract override fun getParent(): PsiElement?
     abstract override fun getQualifiedName(): String?
@@ -159,12 +157,12 @@ abstract class KtLightClassForSourceDeclaration(
 
         val aClass = other as KtLightClassForSourceDeclaration
 
-        if (classFqName != aClass.classFqName) return false
+        if (classOrObject != aClass.classOrObject) return false
 
         return true
     }
 
-    override fun hashCode(): Int = classFqName.hashCode()
+    override fun hashCode(): Int = classOrObject.hashCode()
 
     override fun getContainingClass(): PsiClass? {
         if (classOrObject.parent === classOrObject.containingFile) return null
@@ -186,7 +184,7 @@ abstract class KtLightClassForSourceDeclaration(
 
     override fun getTypeParameters(): Array<PsiTypeParameter> = _typeParameterList.typeParameters
 
-    override fun getName(): String? = classFqName.shortName().asString()
+    override fun getName(): String? = classOrObject.nameAsName?.asString()
 
     private val _modifierList : PsiModifierList by lazy(LazyThreadSafetyMode.PUBLICATION) {
         object : KtLightModifierListWithExplicitModifiers(this@KtLightClassForSourceDeclaration, computeModifiers()) {

compiler/light-classes/src/org/jetbrains/kotlin/asJava/classes/KtLightClassImpl.kt

@@ -24,7 +24,10 @@ class KtLightClassImpl(
         classFqNameFunction: (KtClassOrObject) -> FqName,
         classOrObject: KtClassOrObject
 ) : KtLightClassForSourceDeclaration(classFqNameFunction, classOrObject) {
-    override fun getQualifiedName() = classFqName.asString()
+    val fqName: FqName
+        get() = fqName
+
+    override fun getQualifiedName() = classOrObject.fqName?.asString()
 
     override fun getParent() = if (classOrObject.isTopLevel())
         containingFile

compiler/light-classes/src/org/jetbrains/kotlin/asJava/elements/KtLightFieldImpl.kt

@@ -26,6 +26,7 @@ import org.jetbrains.kotlin.asJava.builder.LightMemberOrigin
 import org.jetbrains.kotlin.asJava.builder.LightMemberOriginForDeclaration
 import org.jetbrains.kotlin.asJava.classes.KtLightClass
 import org.jetbrains.kotlin.asJava.classes.KtLightClassForEnumEntry
+import org.jetbrains.kotlin.asJava.classes.KtLightClassImpl
 import org.jetbrains.kotlin.idea.KotlinLanguage
 import org.jetbrains.kotlin.name.FqName
 import org.jetbrains.kotlin.psi.KtDeclaration
@@ -140,7 +141,7 @@ sealed class KtLightFieldImpl(
                 is PsiEnumConstant -> {
                     val kotlinEnumEntry = (origin as? LightMemberOriginForDeclaration)?.originalElement as? KtEnumEntry
                     val initializingClass = if (kotlinEnumEntry != null && kotlinEnumEntry.declarations.isNotEmpty()) {
-                        val enumConstantFqName = FqName(containingClass.getFqName().asString() + "." + kotlinEnumEntry.name)
+                        val enumConstantFqName = FqName((containingClass as KtLightClassImpl).fqName.asString() + "." + kotlinEnumEntry.name)
                         KtLightClassForEnumEntry(enumConstantFqName, kotlinEnumEntry, delegate)
                     }
                     else null