[FIR] Add JVM_RECORD_NOT_VAL_PARAMETER diagnostic

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

@@ -67,6 +67,7 @@ object JVM_DIAGNOSTICS_LIST : DiagnosticList("FirJvmErrors") {
         val ENUM_JVM_RECORD by error<PsiElement>(PositioningStrategy.ENUM_MODIFIER)
         val JVM_RECORD_WITHOUT_PRIMARY_CONSTRUCTOR_PARAMETERS by error<PsiElement>()
         val NON_DATA_CLASS_JVM_RECORD by error<PsiElement>()
+        val JVM_RECORD_NOT_VAL_PARAMETER by error<PsiElement>()
     }
 
 }

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

@@ -56,5 +56,6 @@ object FirJvmErrors {
     val ENUM_JVM_RECORD by error0<PsiElement>(SourceElementPositioningStrategies.ENUM_MODIFIER)
     val JVM_RECORD_WITHOUT_PRIMARY_CONSTRUCTOR_PARAMETERS by error0<PsiElement>()
     val NON_DATA_CLASS_JVM_RECORD by error0<PsiElement>()
+    val JVM_RECORD_NOT_VAL_PARAMETER by error0<PsiElement>()
 
 }

compiler/fir/checkers/checkers.jvm/src/org/jetbrains/kotlin/fir/analysis/jvm/checkers/declaration/FirJvmRecordChecker.kt

@@ -6,12 +6,14 @@
 package org.jetbrains.kotlin.fir.analysis.jvm.checkers.declaration
 
 import org.jetbrains.kotlin.config.LanguageFeature
+import org.jetbrains.kotlin.fir.FirFakeSourceElementKind
 import org.jetbrains.kotlin.fir.analysis.checkers.context.CheckerContext
 import org.jetbrains.kotlin.fir.analysis.checkers.declaration.FirRegularClassChecker
 import org.jetbrains.kotlin.fir.analysis.diagnostics.DiagnosticReporter
 import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors
 import org.jetbrains.kotlin.fir.analysis.diagnostics.jvm.FirJvmErrors
 import org.jetbrains.kotlin.fir.analysis.diagnostics.reportOn
+import org.jetbrains.kotlin.fir.declarations.FirProperty
 import org.jetbrains.kotlin.fir.declarations.FirRegularClass
 import org.jetbrains.kotlin.fir.declarations.getAnnotationByFqName
 import org.jetbrains.kotlin.fir.declarations.utils.*
@@ -58,6 +60,15 @@ object FirJvmRecordChecker : FirRegularClassChecker() {
 
         if (declaration.primaryConstructor?.valueParameters?.isEmpty() == true) {
             reporter.reportOn(annotationSource, FirJvmErrors.JVM_RECORD_WITHOUT_PRIMARY_CONSTRUCTOR_PARAMETERS, context)
+            return
+        }
+
+        declaration.declarations.forEach { decl ->
+            if (decl is FirProperty) {
+                if (decl.isVar && decl.source?.kind == FirFakeSourceElementKind.PropertyFromParameter) {
+                    reporter.reportOn(decl.source, FirJvmErrors.JVM_RECORD_NOT_VAL_PARAMETER, context)
+                }
+            }
         }
     }
 }

compiler/testData/diagnostics/tests/testsWithJava15/jvmRecord/jvmRecordDescriptorStructure.fir.kt

@@ -9,6 +9,9 @@ class BasicRecord(val x: String)
 @JvmRecord
 data class BasicDataRecord(val x: String)
 
+@JvmRecord
+data class VarInConstructor(<!JVM_RECORD_NOT_VAL_PARAMETER!>var x: String<!>)
+
 <!NON_DATA_CLASS_JVM_RECORD!>@JvmRecord<!>
 <!ABSTRACT_CLASS_MEMBER_NOT_IMPLEMENTED!>class BasicRecordWithSuperClass<!>(val x: String) : Record()
 

compiler/testData/diagnostics/tests/testsWithJava15/jvmRecord/jvmRecordDescriptorStructure.kt

@@ -9,6 +9,9 @@ class BasicRecord(val x: String)
 @JvmRecord
 data class BasicDataRecord(val x: String)
 
+@JvmRecord
+data class VarInConstructor(<!JVM_RECORD_NOT_VAL_PARAMETER!>var x: String<!>)
+
 @JvmRecord
 class BasicRecordWithSuperClass(val x: String) : <!ILLEGAL_JAVA_LANG_RECORD_SUPERTYPE!>Record()<!>