[Gradle, JS] Warning on missed types and typings on genext npm dep

#KT-38331 fixed

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/dukat/DtsResolver.kt

@@ -26,11 +26,36 @@ class DtsResolver(val npmProject: NpmProject) {
             .asSequence()
             .filter { !considerGeneratingFlag || it.generateExternals }
             .filter { it.scope == NORMAL || it.scope == OPTIONAL }
-            .mapNotNullTo(mutableSetOf()) { typeModules.resolve(it.key)?.let { file -> Dts(file.canonicalFile, it) } }
+            .mapNotNullTo(mutableSetOf()) { dependency ->
+                getDtsFromDependency(dependency, considerGeneratingFlag)
+            }
             .sortedBy { it.inputKey }
             .toList()
     }
 
+    private fun getDtsFromDependency(
+        dependency: NpmDependency,
+        considerGeneratingFlag: Boolean
+    ): Dts? {
+        val dts = typeModules.resolve(dependency.key)
+            ?.let { file ->
+                Dts(file.canonicalFile, dependency)
+            }
+        if (dts == null && considerGeneratingFlag) {
+            warningOnMissedDTs(dependency)
+        }
+        return dts
+    }
+
+    private fun warningOnMissedDTs(dependency: NpmDependency) {
+        npmProject.project.logger.warn(
+            """
+            No `types` or `typings` found for '$dependency'.
+            To find d.ts for dependency, fields `types` and `typings` should be declared in `package.json`
+            """.trimIndent()
+        )
+    }
+
     class Dts(val file: File, val npmDependency: NpmDependency) {
         val inputKey: String
             get() = npmDependency.key + "@" + npmDependency.resolvedVersion + "#" + npmDependency.integrity