[analysis api] fix ISE: No conversion was found for SYNTAX

^KT-51786 fixed

analysis/analysis-api-fir/analysis-api-fir-generator/src/org/jetbrains/kotlin/analysis/api/fir/generator/DiagnosticClassGenerator.kt

@@ -15,8 +15,8 @@ import java.nio.file.Path
 object DiagnosticClassGenerator {
     fun generate(rootPath: Path, diagnosticList: DiagnosticList, packageName: String) {
         val path = getGenerationPath(rootPath.toFile(), packageName)
-        KtDiagnosticClassRenderer.render(path.resolve("KtFirDiagnostics.kt"), diagnosticList, packageName)
-        KtDiagnosticClassImplementationRenderer.render(path.resolve("KtFirDiagnosticsImpl.kt"), diagnosticList, packageName)
-        FirDiagnosticToKtDiagnosticConverterRenderer.render(path.resolve("KtFirDataClassConverters.kt"), diagnosticList, packageName)
+        KtDiagnosticClassRenderer.render(path.resolve("KtFirDiagnostics.kt"), diagnosticList, packageName, emptySet())
+        KtDiagnosticClassImplementationRenderer.render(path.resolve("KtFirDiagnosticsImpl.kt"), diagnosticList, packageName, emptySet())
+        FirDiagnosticToKtDiagnosticConverterRenderer.render(path.resolve("KtFirDataClassConverters.kt"), diagnosticList, packageName, emptySet())
     }
 }

analysis/analysis-api-fir/analysis-api-fir-generator/src/org/jetbrains/kotlin/analysis/api/fir/generator/Main.kt

@@ -8,9 +8,12 @@ package org.jetbrains.kotlin.analysis.api.fir.generator
 import org.jetbrains.kotlin.fir.checkers.generator.diagnostics.DIAGNOSTICS_LIST
 import org.jetbrains.kotlin.fir.checkers.generator.diagnostics.JVM_DIAGNOSTICS_LIST
 import java.nio.file.Paths
+import org.jetbrains.kotlin.analysis.api.fir.generator.DiagnosticClassGenerator.generate
+import org.jetbrains.kotlin.fir.builder.SYNTAX_DIAGNOSTIC_LIST
 
 fun main() {
     val rootPath = Paths.get("analysis/analysis-api-fir/src").toAbsolutePath()
     val packageName = "org.jetbrains.kotlin.analysis.api.fir.diagnostics"
-    DiagnosticClassGenerator.generate(rootPath, DIAGNOSTICS_LIST + JVM_DIAGNOSTICS_LIST, packageName)
+    val diagnostics = DIAGNOSTICS_LIST + JVM_DIAGNOSTICS_LIST + SYNTAX_DIAGNOSTIC_LIST
+    generate(rootPath, diagnostics, packageName)
 }

analysis/analysis-api-fir/analysis-api-fir-generator/src/org/jetbrains/kotlin/analysis/api/fir/generator/rendererrs/AbstractDiagnosticsDataClassRenderer.kt

@@ -21,7 +21,7 @@ import java.io.File
 import kotlin.reflect.KType
 
 abstract class AbstractDiagnosticsDataClassRenderer : DiagnosticListRenderer() {
-    override fun render(file: File, diagnosticList: DiagnosticList, packageName: String) {
+    override fun render(file: File, diagnosticList: DiagnosticList, packageName: String, starImportsToAdd: Set<String>) {
         val hlDiagnosticsList = HLDiagnosticConverter.convert(diagnosticList)
         file.writeToFileUsingSmartPrinterIfFileContentChanged { render(hlDiagnosticsList, packageName) }
     }

analysis/analysis-api-fir/src/org/jetbrains/kotlin/analysis/api/fir/diagnostics/KtFirDataClassConverters.kt

@@ -4441,4 +4441,10 @@ internal val KT_DIAGNOSTIC_CONVERTER = KtDiagnosticConverterBuilder.buildConvert
             token,
         )
     }
+    add(FirSyntaxErrors.SYNTAX) { firDiagnostic ->
+        SyntaxImpl(
+            firDiagnostic as KtPsiDiagnostic,
+            token,
+        )
+    }
 }

analysis/analysis-api-fir/src/org/jetbrains/kotlin/analysis/api/fir/diagnostics/KtFirDiagnostics.kt

@@ -3088,4 +3088,8 @@ sealed class KtFirDiagnostic<PSI : PsiElement> : KtDiagnosticWithPsi<PSI> {
         override val diagnosticClass get() = JavaSamInterfaceConstructorReference::class
     }
 
+    abstract class Syntax : KtFirDiagnostic<PsiElement>() {
+        override val diagnosticClass get() = Syntax::class
+    }
+
 }

analysis/analysis-api-fir/src/org/jetbrains/kotlin/analysis/api/fir/diagnostics/KtFirDiagnosticsImpl.kt

@@ -3734,3 +3734,8 @@ internal class JavaSamInterfaceConstructorReferenceImpl(
     override val token: ValidityToken,
 ) : KtFirDiagnostic.JavaSamInterfaceConstructorReference(), KtAbstractFirDiagnostic<PsiElement>
 
+internal class SyntaxImpl(
+    override val firDiagnostic: KtPsiDiagnostic,
+    override val token: ValidityToken,
+) : KtFirDiagnostic.Syntax(), KtAbstractFirDiagnostic<PsiElement>
+