Revert "[light classes] drop old light classes and backend: iteration #9"

This reverts commit 38378309b1.

compiler/cli/src/org/jetbrains/kotlin/cli/jvm/compiler/CliExtraDiagnosticsProvider.kt

@@ -10,6 +10,7 @@ import com.intellij.psi.search.GlobalSearchScope
 import com.intellij.psi.util.CachedValue
 import com.intellij.psi.util.CachedValuesManager
 import org.jetbrains.kotlin.asJava.KotlinAsJavaSupport
+import org.jetbrains.kotlin.asJava.KotlinExtraDiagnosticsProvider
 import org.jetbrains.kotlin.asJava.LightClassGenerationSupport
 import org.jetbrains.kotlin.asJava.classes.getOutermostClassOrObject
 import org.jetbrains.kotlin.asJava.classes.safeIsLocal
@@ -30,8 +31,8 @@ private val JAVA_API_STUB_LOCK = Key.create<Any>("JAVA_API_STUB_LOCK")
 
 private val javaApiStubInitIsRunning: ThreadLocal<Boolean> = ThreadLocal.withInitial { false }
 
-object CliExtraDiagnosticsProvider {
-    fun forClassOrObject(kclass: KtClassOrObject): Diagnostics {
+class CliExtraDiagnosticsProvider : KotlinExtraDiagnosticsProvider {
+    override fun forClassOrObject(kclass: KtClassOrObject): Diagnostics {
         if (kclass.shouldNotBeVisibleAsLightClass()) {
             return Diagnostics.EMPTY
         }
@@ -43,7 +44,7 @@ object CliExtraDiagnosticsProvider {
         }.extraDiagnostics
     }
 
-    fun forFacade(file: KtFile, moduleScope: GlobalSearchScope): Diagnostics {
+    override fun forFacade(file: KtFile, moduleScope: GlobalSearchScope): Diagnostics {
         val project = file.project
         val facadeFqName = JvmFileClassUtil.getFileClassInfoNoResolve(file).facadeClassFqName
         val files = KotlinAsJavaSupport.getInstance(project)

compiler/cli/src/org/jetbrains/kotlin/cli/jvm/compiler/FirKotlinToJvmBytecodeCompiler.kt

@@ -1,11 +1,12 @@
 /*
- * Copyright 2010-2022 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Copyright 2010-2021 JetBrains s.r.o. and Kotlin Programming Language contributors.
  * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
 
 package org.jetbrains.kotlin.cli.jvm.compiler
 
 import org.jetbrains.kotlin.analyzer.common.CommonPlatformAnalyzerServices
+import org.jetbrains.kotlin.asJava.FilteredJvmDiagnostics
 import org.jetbrains.kotlin.backend.common.extensions.IrGenerationExtension
 import org.jetbrains.kotlin.backend.jvm.JvmGeneratorExtensions
 import org.jetbrains.kotlin.backend.jvm.JvmIrCodegenFactory

compiler/cli/src/org/jetbrains/kotlin/cli/jvm/compiler/KotlinCoreEnvironment.kt

@@ -39,6 +39,7 @@ import com.intellij.util.io.URLUtil
 import com.intellij.util.lang.UrlClassLoader
 import org.jetbrains.annotations.TestOnly
 import org.jetbrains.kotlin.asJava.KotlinAsJavaSupport
+import org.jetbrains.kotlin.asJava.KotlinExtraDiagnosticsProvider
 import org.jetbrains.kotlin.asJava.LightClassGenerationSupport
 import org.jetbrains.kotlin.asJava.classes.FacadeCache
 import org.jetbrains.kotlin.asJava.finder.JavaElementFinder
@@ -719,6 +720,7 @@ class KotlinCoreEnvironment private constructor(
                 val traceHolder = CliTraceHolder()
                 val cliLightClassGenerationSupport = CliLightClassGenerationSupport(traceHolder, project)
                 val kotlinAsJavaSupport = CliKotlinAsJavaSupport(this, traceHolder)
+                registerService(KotlinExtraDiagnosticsProvider::class.java, CliExtraDiagnosticsProvider())
                 registerService(LightClassGenerationSupport::class.java, cliLightClassGenerationSupport)
                 registerService(CliLightClassGenerationSupport::class.java, cliLightClassGenerationSupport)
                 registerService(KotlinAsJavaSupport::class.java, kotlinAsJavaSupport)

compiler/cli/src/org/jetbrains/kotlin/cli/jvm/compiler/KotlinToJVMBytecodeCompiler.kt

@@ -1,6 +1,17 @@
 /*
- * Copyright 2010-2022 JetBrains s.r.o. and Kotlin Programming Language contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ * Copyright 2010-2017 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 package org.jetbrains.kotlin.cli.jvm.compiler
@@ -13,6 +24,7 @@ import com.intellij.psi.PsiJavaModule
 import com.intellij.psi.search.DelegatingGlobalSearchScope
 import com.intellij.psi.search.GlobalSearchScope
 import org.jetbrains.kotlin.analyzer.AnalysisResult
+import org.jetbrains.kotlin.asJava.FilteredJvmDiagnostics
 import org.jetbrains.kotlin.backend.jvm.JvmIrCodegenFactory
 import org.jetbrains.kotlin.cli.common.CLIConfigurationKeys
 import org.jetbrains.kotlin.cli.common.checkKotlinPackageUsage

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

@@ -0,0 +1,25 @@
+/*
+ * Copyright 2010-2022 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.asJava;
+
+import com.intellij.openapi.project.Project;
+import com.intellij.psi.search.GlobalSearchScope;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.kotlin.psi.KtClassOrObject;
+import org.jetbrains.kotlin.psi.KtFile;
+import org.jetbrains.kotlin.resolve.diagnostics.Diagnostics;
+
+public interface KotlinExtraDiagnosticsProvider {
+    @NotNull
+    Diagnostics forClassOrObject(@NotNull KtClassOrObject kclass);
+
+    @NotNull
+    Diagnostics forFacade(@NotNull KtFile file, @NotNull GlobalSearchScope moduleScope);
+
+    static @NotNull KotlinExtraDiagnosticsProvider getInstance(@NotNull Project project) {
+        return project.getService(KotlinExtraDiagnosticsProvider.class);
+    }
+}

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

@@ -3,7 +3,7 @@
  * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
 
-package org.jetbrains.kotlin.cli.jvm.compiler
+package org.jetbrains.kotlin.asJava
 
 import com.intellij.psi.PsiElement
 import com.intellij.psi.search.GlobalSearchScope
@@ -21,7 +21,7 @@ import org.jetbrains.kotlin.resolve.jvm.diagnostics.JvmDeclarationOriginKind.*
 fun getJvmSignatureDiagnostics(element: PsiElement, otherDiagnostics: Diagnostics, moduleScope: GlobalSearchScope): Diagnostics? {
     fun getDiagnosticsForClass(ktClassOrObject: KtClassOrObject): Diagnostics {
         val outermostClass = getOutermostClassOrObject(ktClassOrObject)
-        return CliExtraDiagnosticsProvider.forClassOrObject(outermostClass)
+        return KotlinExtraDiagnosticsProvider.getInstance(ktClassOrObject.project).forClassOrObject(outermostClass)
     }
 
     fun doGetDiagnostics(): Diagnostics? {
@@ -45,7 +45,7 @@ fun getJvmSignatureDiagnostics(element: PsiElement, otherDiagnostics: Diagnostic
 
         when (parent) {
             is KtFile -> {
-                return CliExtraDiagnosticsProvider.forFacade(parent, moduleScope)
+                return KotlinExtraDiagnosticsProvider.getInstance(parent.project).forFacade(parent, moduleScope)
             }
 
             is KtClassBody -> {

compiler/tests-common-new/tests/org/jetbrains/kotlin/test/frontend/classic/handlers/ClassicDiagnosticsHandler.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2022 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Copyright 2010-2020 JetBrains s.r.o. and Kotlin Programming Language contributors.
  * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
 
@@ -7,10 +7,10 @@ package org.jetbrains.kotlin.test.frontend.classic.handlers
 
 import com.intellij.psi.search.GlobalSearchScope
 import com.intellij.psi.util.PsiTreeUtil
+import org.jetbrains.kotlin.asJava.getJvmSignatureDiagnostics
 import org.jetbrains.kotlin.checkers.diagnostics.SyntaxErrorDiagnostic
 import org.jetbrains.kotlin.checkers.utils.CheckerTestUtil
 import org.jetbrains.kotlin.checkers.utils.DiagnosticsRenderingConfiguration
-import org.jetbrains.kotlin.cli.jvm.compiler.getJvmSignatureDiagnostics
 import org.jetbrains.kotlin.descriptors.impl.ModuleDescriptorImpl
 import org.jetbrains.kotlin.diagnostics.Diagnostic
 import org.jetbrains.kotlin.diagnostics.Errors

compiler/tests-common/tests/org/jetbrains/kotlin/checkers/BaseDiagnosticsTest.kt

@@ -1,6 +1,17 @@
 /*
- * Copyright 2010-2022 JetBrains s.r.o. and Kotlin Programming Language contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ * Copyright 2010-2017 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 package org.jetbrains.kotlin.checkers
@@ -12,6 +23,7 @@ import com.intellij.openapi.util.TextRange
 import com.intellij.psi.search.GlobalSearchScope
 import com.intellij.psi.util.PsiTreeUtil
 import com.intellij.util.containers.ContainerUtil
+import org.jetbrains.kotlin.asJava.getJvmSignatureDiagnostics
 import org.jetbrains.kotlin.checkers.BaseDiagnosticsTest.TestFile
 import org.jetbrains.kotlin.checkers.BaseDiagnosticsTest.TestModule
 import org.jetbrains.kotlin.checkers.diagnostics.ActualDiagnostic
@@ -22,7 +34,6 @@ import org.jetbrains.kotlin.checkers.diagnostics.factories.SyntaxErrorDiagnostic
 import org.jetbrains.kotlin.checkers.utils.CheckerTestUtil
 import org.jetbrains.kotlin.checkers.utils.DiagnosticsRenderingConfiguration
 import org.jetbrains.kotlin.cli.jvm.compiler.KotlinCoreEnvironment
-import org.jetbrains.kotlin.cli.jvm.compiler.getJvmSignatureDiagnostics
 import org.jetbrains.kotlin.config.*
 import org.jetbrains.kotlin.descriptors.DeclarationDescriptor
 import org.jetbrains.kotlin.descriptors.impl.ModuleDescriptorImpl
@@ -45,6 +56,7 @@ import org.jetbrains.kotlin.test.util.KtTestUtil
 import org.jetbrains.kotlin.utils.addIfNotNull
 import org.junit.Assert
 import java.io.File
+import java.util.*
 import java.util.regex.Pattern
 import kotlin.reflect.jvm.javaField