prelude: panic_abort and panic_unwind in explicit sysroot deps

Summary: Will need access to these in a future diff, more details to come

Reviewed By: dtolnay

Differential Revision: D52234629

fbshipit-source-id: 761dbc6cced094649c72eceea936e9a930e392df

prelude/rust/link_info.bzl

@@ -228,6 +228,18 @@ def gather_explicit_sysroot_deps(dep_ctx: DepCollectionContext) -> list[RustOrNa
             name = None,
             flags = ["nounused"] + flags,
         ))
+    if explicit_sysroot_deps.panic_unwind:
+        out.append(RustOrNativeDependency(
+            dep = explicit_sysroot_deps.panic_unwind,
+            name = None,
+            flags = ["nounused"],
+        ))
+    if explicit_sysroot_deps.panic_abort:
+        out.append(RustOrNativeDependency(
+            dep = explicit_sysroot_deps.panic_abort,
+            name = None,
+            flags = ["nounused"],
+        ))
     for d in explicit_sysroot_deps.others:
         # FIXME(JakobDegen): Ideally we would not be using `noprelude` here but
         # instead report these as regular transitive dependencies. However,

prelude/rust/rust_toolchain.bzl

@@ -22,6 +22,8 @@ RustExplicitSysrootDeps = record(
     core = Dependency | None,
     proc_macro = Dependency | None,
     std = Dependency | None,
+    panic_unwind = Dependency | None,
+    panic_abort = Dependency | None,
     others = list[Dependency],
 )