Fir: Print origin of the generated diagnostics

similar to other generated entities by now.

compiler/fir/checkers/checkers-component-generator/build.gradle.kts

@@ -7,6 +7,7 @@ plugins {
 dependencies {
     implementation(project(":generators"))
     implementation(project(":compiler:fir:tree"))
+    implementation(project(":generators:tree-generator-common"))
     implementation(project(":compiler:fir:tree:tree-generator"))
     implementation(project(":compiler:resolution.common"))
     implementation(commonDependency("org.jetbrains.kotlin:kotlin-reflect")) { isTransitive = false }

compiler/fir/checkers/checkers-component-generator/src/org/jetbrains/kotlin/fir/checkers/generator/diagnostics/model/DiagnosticList.kt

@@ -14,6 +14,9 @@ import kotlin.reflect.KType
 import kotlin.reflect.typeOf
 
 abstract class DiagnosticList(internal val objectName: String) {
+
+    val diagnosticListDefinitionFQN = this::class.qualifiedName
+
     @Suppress("PropertyName")
     @PrivateForInline
     val _groups = mutableListOf<AbstractDiagnosticGroup>()
@@ -135,3 +138,11 @@ sealed class DiagnosticBuilder(
         const val MAX_DIAGNOSTIC_PARAMETER_COUNT = 4
     }
 }
+
+fun DiagnosticList.extendedKDoc(defaultKDoc: String? = null): String = buildString {
+    if (defaultKDoc != null) {
+        appendLine(defaultKDoc)
+        appendLine()
+    }
+    append("Generated from: [$diagnosticListDefinitionFQN]")
+}

compiler/fir/checkers/checkers-component-generator/src/org/jetbrains/kotlin/fir/checkers/generator/diagnostics/model/ErrorListDiagnosticListRenderer.kt

@@ -8,6 +8,7 @@ package org.jetbrains.kotlin.fir.checkers.generator.diagnostics.model
 import org.jetbrains.kotlin.fir.checkers.generator.*
 import org.jetbrains.kotlin.fir.checkers.generator.printCopyright
 import org.jetbrains.kotlin.fir.tree.generator.util.writeToFileUsingSmartPrinterIfFileContentChanged
+import org.jetbrains.kotlin.generators.tree.printer.printKDoc
 import org.jetbrains.kotlin.utils.SmartPrinter
 import java.io.File
 import kotlin.reflect.KClass
@@ -39,7 +40,7 @@ object ErrorListDiagnosticListRenderer : DiagnosticListRenderer() {
         println("package $packageName")
         println()
         collectAndPrintImports(diagnosticList, packageName, starImportsToAdd)
-        printGeneratedMessage()
+        printKDoc(diagnosticList.extendedKDoc())
         printErrorsObject(diagnosticList)
     }
 

compiler/fir/checkers/checkers.js/gen/org/jetbrains/kotlin/fir/analysis/diagnostics/js/FirJsErrors.kt

@@ -22,11 +22,9 @@ import org.jetbrains.kotlin.psi.KtElement
 import org.jetbrains.kotlin.psi.KtExpression
 import org.jetbrains.kotlin.psi.KtParameter
 
-/*
- * This file was generated automatically
- * DO NOT MODIFY IT MANUALLY
+/**
+ * Generated from: [org.jetbrains.kotlin.fir.checkers.generator.diagnostics.JS_DIAGNOSTICS_LIST]
  */
-
 object FirJsErrors {
     // Annotations
     val WRONG_JS_QUALIFIER by error0<KtElement>()

compiler/fir/checkers/checkers.jvm/gen/org/jetbrains/kotlin/fir/analysis/diagnostics/jvm/FirJvmErrors.kt

@@ -25,11 +25,9 @@ import org.jetbrains.kotlin.psi.KtDeclaration
 import org.jetbrains.kotlin.psi.KtElement
 import org.jetbrains.kotlin.psi.KtExpression
 
-/*
- * This file was generated automatically
- * DO NOT MODIFY IT MANUALLY
+/**
+ * Generated from: [org.jetbrains.kotlin.fir.checkers.generator.diagnostics.JVM_DIAGNOSTICS_LIST]
  */
-
 object FirJvmErrors {
     // Declarations
     val OVERRIDE_CANNOT_BE_STATIC by error0<PsiElement>()

compiler/fir/checkers/checkers.native/gen/org/jetbrains/kotlin/fir/analysis/diagnostics/native/FirNativeErrors.kt

@@ -18,11 +18,9 @@ import org.jetbrains.kotlin.name.FqName
 import org.jetbrains.kotlin.psi.KtDeclaration
 import org.jetbrains.kotlin.psi.KtElement
 
-/*
- * This file was generated automatically
- * DO NOT MODIFY IT MANUALLY
+/**
+ * Generated from: [org.jetbrains.kotlin.fir.checkers.generator.diagnostics.NATIVE_DIAGNOSTICS_LIST]
  */
-
 object FirNativeErrors {
     // All
     val THROWS_LIST_EMPTY by error0<KtElement>()

compiler/fir/checkers/checkers.wasm/gen/org/jetbrains/kotlin/fir/analysis/diagnostics/wasm/FirWasmErrors.kt

@@ -13,11 +13,9 @@ import org.jetbrains.kotlin.fir.analysis.diagnostics.*
 import org.jetbrains.kotlin.fir.types.ConeKotlinType
 import org.jetbrains.kotlin.psi.KtElement
 
-/*
- * This file was generated automatically
- * DO NOT MODIFY IT MANUALLY
+/**
+ * Generated from: [org.jetbrains.kotlin.fir.checkers.generator.diagnostics.WASM_DIAGNOSTICS_LIST]
  */
-
 object FirWasmErrors {
     // Externals
     val NON_EXTERNAL_TYPE_EXTENDS_EXTERNAL_TYPE by error1<KtElement, ConeKotlinType>(SourceElementPositioningStrategies.DECLARATION_SIGNATURE_OR_DEFAULT)

compiler/fir/checkers/gen/org/jetbrains/kotlin/fir/analysis/diagnostics/FirErrors.kt

@@ -114,11 +114,9 @@ import org.jetbrains.kotlin.resolve.multiplatform.ExpectActualCompatibility.Mism
 import org.jetbrains.kotlin.serialization.deserialization.IncompatibleVersionErrorData
 import org.jetbrains.kotlin.types.Variance
 
-/*
- * This file was generated automatically
- * DO NOT MODIFY IT MANUALLY
+/**
+ * Generated from: [org.jetbrains.kotlin.fir.checkers.generator.diagnostics.DIAGNOSTICS_LIST]
  */
-
 object FirErrors {
     // Meta-errors
     val UNSUPPORTED by error1<PsiElement, String>()

compiler/fir/raw-fir/raw-fir.common/gen/org/jetbrains/kotlin/fir/builder/FirSyntaxErrors.kt

@@ -9,11 +9,9 @@ import com.intellij.psi.PsiElement
 import org.jetbrains.kotlin.diagnostics.*
 import org.jetbrains.kotlin.diagnostics.rendering.RootDiagnosticRendererFactory
 
-/*
- * This file was generated automatically
- * DO NOT MODIFY IT MANUALLY
+/**
+ * Generated from: [org.jetbrains.kotlin.fir.builder.SYNTAX_DIAGNOSTIC_LIST]
  */
-
 object FirSyntaxErrors {
     // Syntax
     val SYNTAX by error1<PsiElement, String>()