Add default value for _default_copts in cc_binary.

PiperOrigin-RevId: 468658628
Change-Id: Iec00eb31767d667e1adf4283b84d3b0f3e7b7265

src/main/starlark/builtins_bzl/common/cc/cc_binary_attrs.bzl

@@ -19,6 +19,7 @@ load(":common/cc/semantics.bzl", "semantics")
 load(":common/cc/experimental_cc_shared_library.bzl", "CcSharedLibraryInfo", "graph_structure_aspect")
 
 CcInfo = _builtins.toplevel.CcInfo
+cc_internal = _builtins.internal.cc_internal
 
 cc_binary_attrs_with_aspects = {
     "srcs": attr.label_list(
@@ -89,8 +90,7 @@ cc_binary_attrs_with_aspects = {
     "_stl": semantics.get_stl(),
     "_cc_toolchain": attr.label(default = "@" + semantics.get_repo() + "//tools/cpp:current_cc_toolchain"),
     "_cc_toolchain_type": attr.label(default = "@" + semantics.get_repo() + "//tools/cpp:toolchain_type"),
-    # TODO(b/198254254): Add default computed value once it is available in the API.
-    "_default_copts": attr.string_list(),
+    "_default_copts": attr.string_list(default = cc_internal.default_copts_computed_default()),
     "_def_parser": semantics.get_def_parser(),
 }