Fir: Print origin of the generated diagnostics

similar to other generated entities by now.

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)