fix(typescript): allow synthetic default imports when using `ModuleKind.ESNext` (#16438)

Closes #16437

1 files changed, 9 insertions, 0 deletions

diff --git a/cli/tests/testdata/check/export_equals_declaration_file/other.d.ts b/cli/tests/testdata/check/export_equals_declaration_file/other.d.ts
new file mode 100644
index 000000000..5e1274fa5
--- /dev/null
+++ b/cli/tests/testdata/check/export_equals_declaration_file/other.d.ts
@@ -0,0 +1,9 @@
+export = other;
+
+declare function other(): string;
+
+declare namespace other {
+  interface Attributes {
+    [attr: string]: string;
+  }
+}