gh shims: Set up shim for rust_linkable_symbol

Summary: So that we can use it in first party OSS projects

Reviewed By: dtolnay

Differential Revision:
D62731699

Privacy Context Container: L1123788

fbshipit-source-id: 892c43d69a34dd02cf2295ef665b41e45846982b

shim/build_defs/rust_linkable_symbol.bzl

@@ -0,0 +1,18 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under both the MIT license found in the
+# LICENSE-MIT file in the root directory of this source tree and the Apache
+# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
+# of this source tree.
+
+load("@prelude//rust:linkable_symbol.bzl", prelude_rust_linkable_symbol = "rust_linkable_symbol")
+load("@shim//:shims.bzl", _rust_library = "rust_library")
+
+def rust_linkable_symbol(
+        visibility = ["PUBLIC"],
+        **kwargs):
+    prelude_rust_linkable_symbol(
+        visibility = visibility,
+        rust_library_macro = _rust_library,
+        **kwargs
+    )

shim/shims.bzl

@@ -451,6 +451,8 @@ def _fix_dep(x: str) -> [
         return "root//" + x.removeprefix("//")
     elif x.startswith("shim//"):
         return x
+    elif x.startswith("prelude//"):
+        return x
     else:
         fail("Dependency is unaccounted for `{}`.\n".format(x) +
              "Did you forget 'oss-disable'?")