fix: npm_umd_bundle looks for LinkablePackageInfo

internal/npm_install/npm_umd_bundle.bzl

@@ -17,7 +17,7 @@
 For use by yarn_install and npm_install. Not meant to be part of the public API.
 """
 
-load("//:providers.bzl", "DirectoryFilePathInfo", "ExternalNpmPackageInfo", "node_modules_aspect")
+load("//:providers.bzl", "DirectoryFilePathInfo", "ExternalNpmPackageInfo", "LinkablePackageInfo", "node_modules_aspect")
 load("//internal/common:maybe_directory_file_path.bzl", "maybe_directory_file_path")
 
 def _entry_point_path(ctx):
@@ -43,14 +43,18 @@ def _impl(ctx):
     args.add(output.path)
     args.add_joined(ctx.attr.excluded, join_with = ",")
 
-    sources = ctx.attr.package[ExternalNpmPackageInfo].sources.to_list()
+    if ExternalNpmPackageInfo in ctx.attr.package:
+        sources = ctx.attr.package[ExternalNpmPackageInfo].sources.to_list()
+    else:
+        sources = ctx.attr.package[LinkablePackageInfo].files.to_list()
 
     # Only pass .js and package.json files as inputs to browserify.
     # The latter is required for module resolution in some cases.
+    # We have to pass entire directories as well, since we don't know if they contain .js files
     inputs = [
         f
         for f in sources
-        if f.path.endswith(".js") or f.path.endswith(".json")
+        if f.path.endswith(".js") or f.path.endswith(".json") or f.is_directory
     ]
 
     ctx.actions.run(