Correctly mark visibile nodes when declaration isnt explicitly turned on but composite is true

Fixes microsoft#26669

Author: sheetalkamat

src/compiler/checker.ts

@@ -26347,7 +26347,7 @@ namespace ts {
 
         function checkExportSpecifier(node: ExportSpecifier) {
             checkAliasSymbol(node);
-            if (compilerOptions.declaration) {
+            if (getEmitDeclarations(compilerOptions)) {
                 collectLinkedAliases(node.propertyName || node.name, /*setVisibility*/ true);
             }
             if (!node.parent.parent.moduleSpecifier) {
@@ -26388,7 +26388,7 @@ namespace ts {
             if (node.expression.kind === SyntaxKind.Identifier) {
                 markExportAsReferenced(node);
 
-                if (compilerOptions.declaration) {
+                if (getEmitDeclarations(compilerOptions)) {
                     collectLinkedAliases(node.expression as Identifier, /*setVisibility*/ true);
                 }
             }

tests/baselines/reference/declarationEmitWithComposite.js

@@ -11,4 +11,7 @@ exports.__esModule = true;
 
 
 //// [/foo/out/test.d.ts]
+interface Foo {
+    x: number;
+}
 export default Foo;