Add platforms to apple crosstool transition

This is needed to enable C++ toolchainisation in Bazel.

PiperOrigin-RevId: 558140728
Change-Id: Id0b532de76c9e403790107f6916e8a3a8be23d95
diff --git a/src/test/java/com/google/devtools/build/lib/testutil/TestConstants.java b/src/test/java/com/google/devtools/build/lib/testutil/TestConstants.java
index 4a6659c..f89e204 100644
--- a/src/test/java/com/google/devtools/build/lib/testutil/TestConstants.java
+++ b/src/test/java/com/google/devtools/build/lib/testutil/TestConstants.java
@@ -140,7 +140,8 @@
       + " - deps(" + TOOLS_REPOSITORY + "//tools/cpp:current_cc_toolchain)"
       + " - deps(" + TOOLS_REPOSITORY + "//tools/cpp:grep-includes)";
 
-  public static final String PLATFORM_PACKAGE_ROOT = "@bazel_tools//platforms";
+  public static final String APPLE_PLATFORM_PATH = "build_bazel_apple_support/platforms";
+  public static final String APPLE_PLATFORM_PACKAGE_ROOT = "@build_bazel_apple_support//platforms";
   public static final String CONSTRAINTS_PACKAGE_ROOT = "@platforms//";
   public static final String LOCAL_CONFIG_PLATFORM_PACKAGE_ROOT =
       "@local_config_platform//";