[K/Wasm] Allow to export unsigned numbers

js/js.frontend/src/org/jetbrains/kotlin/js/resolve/JsPlatformConfigurator.kt

@@ -27,7 +27,6 @@ object JsPlatformConfigurator : PlatformConfiguratorBase(
         JsRuntimeAnnotationChecker,
         JsDynamicDeclarationChecker,
         JsExportAnnotationChecker,
-        JsExportDeclarationChecker
     ),
     additionalCallCheckers = listOf(
         JsModuleCallChecker,
@@ -52,6 +51,7 @@ object JsPlatformConfigurator : PlatformConfiguratorBase(
         container.useInstance(ExtensionFunctionToExternalIsInlinable)
         container.useInstance(JsQualifierChecker)
         container.useInstance(JsNativeDiagnosticSuppressor)
+        container.useInstance(JsExportDeclarationChecker(includeUnsignedNumbers = false))
     }
 
     override fun configureModuleDependentCheckers(container: StorageComponentContainer) {

js/js.frontend/src/org/jetbrains/kotlin/js/resolve/diagnostics/JsExportDeclarationChecker.kt

@@ -33,7 +33,7 @@ import org.jetbrains.kotlin.types.KotlinType
 import org.jetbrains.kotlin.types.isDynamic
 import org.jetbrains.kotlin.types.typeUtil.*
 
-object JsExportDeclarationChecker : DeclarationChecker {
+class JsExportDeclarationChecker(private val includeUnsignedNumbers: Boolean) : DeclarationChecker {
     override fun check(declaration: KtDeclaration, descriptor: DeclarationDescriptor, context: DeclarationCheckerContext) {
         val trace = context.trace
         val bindingContext = trace.bindingContext
@@ -190,8 +190,9 @@ object JsExportDeclarationChecker : DeclarationChecker {
                 KotlinBuiltIns.isString(nonNullable) ||
                 (nonNullable.isPrimitiveNumberOrNullableType() && !nonNullable.isLong()) ||
                 nonNullable.isNothingOrNullableNothing() ||
-                KotlinBuiltIns.isArray(this) ||
-                KotlinBuiltIns.isPrimitiveArray(this)
+                KotlinBuiltIns.isArray(nonNullable) ||
+                KotlinBuiltIns.isPrimitiveArray(nonNullable) ||
+                (includeUnsignedNumbers && KotlinBuiltIns.isUnsignedNumber(nonNullable))
 
         if (isPrimitiveExportableType) return true