[JS IR] Enable directives for IR box tests

compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/compiler.kt

@@ -20,6 +20,7 @@ import org.jetbrains.kotlin.ir.declarations.StageController
 import org.jetbrains.kotlin.ir.declarations.persistent.PersistentIrFactory
 import org.jetbrains.kotlin.ir.util.ExternalDependenciesGenerator
 import org.jetbrains.kotlin.ir.util.noUnboundLeft
+import org.jetbrains.kotlin.js.backend.ast.JsProgram
 import org.jetbrains.kotlin.js.config.RuntimeDiagnostic
 import org.jetbrains.kotlin.name.FqName
 
@@ -31,6 +32,7 @@ class CompilerResult(
 
 class CompilationOutputs(
     val jsCode: String,
+    val jsProgram: JsProgram? = null,
     val sourceMap: String? = null,
     val dependencies: Iterable<Pair<String, CompilationOutputs>> = emptyList()
 )

compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/transformers/irToJs/IrModuleToJsTransformer.kt

@@ -113,7 +113,7 @@ class IrModuleToJsTransformer(
                 )
             }.reversed()
 
-            return CompilationOutputs(mainModule.jsCode, mainModule.sourceMap, dependencies)
+            return CompilationOutputs(mainModule.jsCode, mainModule.jsProgram, mainModule.sourceMap, dependencies)
         } else {
             return generateWrappedModuleBody2(
                 modules,
@@ -228,6 +228,7 @@ class IrModuleToJsTransformer(
 
         return CompilationOutputs(
             jsCode.toString(),
+            program,
             if(sourceMapsEnabled) sourceMapBuilder.build() else null
         )
     }