Output dex_preopt to SDK snapshot.

This is needed to determine whether we need to deapex the profile or
not.

Bug: 241823638
Test: m nothing
Test: -
  1. Patch ag/20582608 PS2.
  2. TARGET_BUILD_APPS=com.android.wifi packages/modules/common/build/mainline_modules_sdks.sh
  3. See the `dex_preopt` property being written.
Change-Id: I05177388c24be1ab315247ea85e7e3a8600cebd3

sdk/java_sdk_test.go

@@ -33,7 +33,8 @@ var prepareForSdkTestWithJava = android.GroupFixturePreparers(
 
 	// Files needs by most of the tests.
 	android.MockFS{
-		"Test.java": nil,
+		"Test.java":   nil,
+		"art-profile": nil,
 	}.AddToFixture(),
 )
 

sdk/systemserverclasspath_fragment_sdk_test.go

@@ -62,6 +62,9 @@ func testSnapshotWithSystemServerClasspathFragment(t *testing.T, sdk string, tar
 				min_sdk_version: "2",
 				compile_dex: true,
 				permitted_packages: ["mylib"],
+				dex_preopt: {
+					profile: "art-profile",
+				},
 			}
 
 			java_sdk_library {
@@ -71,6 +74,9 @@ func testSnapshotWithSystemServerClasspathFragment(t *testing.T, sdk string, tar
 				shared_library: false,
 				public: {enabled: true},
 				min_sdk_version: "2",
+				dex_preopt: {
+					profile: "art-profile",
+				},
 			}
 		`),
 	).RunTest(t)
@@ -105,6 +111,9 @@ java_sdk_library_import {
     visibility: ["//visibility:public"],
     apex_available: ["myapex"],
     shared_library: false,
+    dex_preopt: {
+        profile_guided: true,
+    },
     public: {
         jars: ["sdk_library/public/mysdklibrary-stubs.jar"],
         stub_srcs: ["sdk_library/public/mysdklibrary_stub_sources"],
@@ -122,6 +131,9 @@ java_import {
     jars: ["java_systemserver_libs/snapshot/jars/are/invalid/mylib.jar"],
     min_sdk_version: "2",
     permitted_packages: ["mylib"],
+    dex_preopt: {
+        profile_guided: true,
+    },
 }
 
 prebuilt_systemserverclasspath_fragment {
@@ -186,6 +198,54 @@ java_import {
     permitted_packages: ["mylib"],
 }
 
+prebuilt_systemserverclasspath_fragment {
+    name: "mysystemserverclasspathfragment",
+    prefer: false,
+    visibility: ["//visibility:public"],
+    apex_available: ["myapex"],
+    contents: [
+        "mylib",
+        "mysdklibrary",
+    ],
+}
+`)
+	})
+
+	t.Run("target-u", func(t *testing.T) {
+		testSnapshotWithSystemServerClasspathFragment(t, commonSdk, "UpsideDownCake", `
+// This is auto-generated. DO NOT EDIT.
+
+java_sdk_library_import {
+    name: "mysdklibrary",
+    prefer: false,
+    visibility: ["//visibility:public"],
+    apex_available: ["myapex"],
+    shared_library: false,
+    dex_preopt: {
+        profile_guided: true,
+    },
+    public: {
+        jars: ["sdk_library/public/mysdklibrary-stubs.jar"],
+        stub_srcs: ["sdk_library/public/mysdklibrary_stub_sources"],
+        current_api: "sdk_library/public/mysdklibrary.txt",
+        removed_api: "sdk_library/public/mysdklibrary-removed.txt",
+        sdk_version: "current",
+    },
+}
+
+java_import {
+    name: "mylib",
+    prefer: false,
+    visibility: ["//visibility:public"],
+    apex_available: ["myapex"],
+    jars: ["java_systemserver_libs/snapshot/jars/are/invalid/mylib.jar"],
+    min_sdk_version: "2",
+    permitted_packages: ["mylib"],
+    dex_preopt: {
+        profile_guided: true,
+    },
+}
+
 prebuilt_systemserverclasspath_fragment {
     name: "mysystemserverclasspathfragment",
     prefer: false,