Make headers direct dependencies of the compile target

The headers from dependencies _may_ be used to produce an artifact so
they should be direct dependencies.

Author: patrickmscott

go/private/actions/archive.bzl

@@ -196,7 +196,7 @@ def emit_archive(go, source = None, _recompile_suffix = "", recompile_internal_d
         _validation_output = out_nogo_validation,
         _nogo_fix_output = out_nogo_fix,
         _cgo_deps = cgo_deps,
-        _headers = depset([f for f in source.srcs if f.path.split(".")[-1].lower().startswith("h")]),
+        _headers = tuple([f for f in source.srcs if f.path.split(".")[-1].lower().startswith("h")]),
     )
     x_defs = dict(source.x_defs)
     for a in direct:

go/private/actions/compilepkg.bzl

@@ -95,10 +95,11 @@ def emit_compilepkg(
         archives = archives + [go.coverdata]
 
     sdk = go.sdk
-    inputs_direct = (sources + embedsrcs + [sdk.package_list] +
-                     [archive.data.export_file for archive in archives])
-    inputs_transitive = ([sdk.headers, sdk.tools, go.stdlib.libs] +
-                         [archive.data._headers for archive in archives])
+    inputs_direct = sources + embedsrcs + [sdk.package_list]
+    for archive in archives:
+        inputs_direct.append(archive.data.export_file)
+        inputs_direct.extend(archive.data._headers)
+    inputs_transitive = [sdk.headers, sdk.tools, go.stdlib.libs]
     outputs = [out_lib, out_export]
 
     shared_args = go.builder_args(go, use_path_mapping = True)