Dist API specific core-for-system-modules

Previously, the dist only contained a core-for-system-modules.jar for
the public API. This change adds API specific directories containing a
core-for-system-modules.jar file for each of the following APIs:
* public
* module-lib

Bug: 204189791
Test: rm -fr out/dist
      m sdk dist
      find out/dist -name core-for-system-modules.jar
      - outputted the following:
      out/dist/core-for-system-modules.jar
      out/dist/system-modules/module-lib/core-for-system-modules.jar
      out/dist/system-modules/public/core-for-system-modules.jar
Change-Id: Id1845926e2085f70d58e9fc22e9c11cb3d62b919

java/core-libraries/Android.bp

@@ -28,6 +28,11 @@ package {
     default_applicable_licenses: ["Android-Apache-2.0"],
 }
 
+dist_targets = [
+    "sdk",
+    "win_sdk",
+]
+
 java_library {
     name: "core.current.stubs",
     visibility: ["//visibility:public"],
@@ -40,15 +45,16 @@ java_library {
     system_modules: "none",
 
     dist: {
-        targets: [
+        targets: dist_targets,
-            "sdk",
-            "win_sdk",
-        ],
     },
 }
 
 // Distributed with the SDK for turning into system modules to compile apps
 // against.
+//
+// Also, produces dist files that are used by the
+// prebuilts/sdk/update_prebuilts.py script to update the prebuilts/sdk
+// directory.
 java_library {
     name: "core-current-stubs-for-system-modules",
     visibility: ["//development/sdk"],
@@ -65,13 +71,17 @@ java_library {
     ],
     sdk_version: "none",
     system_modules: "none",
-    dist: {
+    dists: [
-        dest: "core-for-system-modules.jar",
+        {
-        targets: [
+            // Legacy dist location for the public file.
-            "sdk",
+            dest: "core-for-system-modules.jar",
-            "win_sdk",
+            targets: dist_targets,
-        ],
+        },
-    },
+        {
+            dest: "system-modules/public/core-for-system-modules.jar",
+            targets: dist_targets,
+        },
+    ],
 }
 
 // Used when compiling higher-level code against core.current.stubs.
@@ -103,10 +113,13 @@ java_library {
     visibility: ["//visibility:private"],
 }
 
-// Used when compiling higher-level code with sdk_version "module_current"
+// Produces a dist file that is used by the
-java_system_modules {
+// prebuilts/sdk/update_prebuilts.py script to update the prebuilts/sdk
-    name: "core-module-lib-stubs-system-modules",
+// directory.
-    libs: [
+java_library {
+    name: "core-module-lib-stubs-for-system-modules",
+    visibility: ["//visibility:private"],
+    static_libs: [
         "core.module_lib.stubs",
         // This one is not on device but it's needed when javac compiles code
         // containing lambdas.
@@ -117,6 +130,20 @@ java_system_modules {
         // See http://b/123891440.
         "core-generated-annotation-stubs",
     ],
+    sdk_version: "none",
+    system_modules: "none",
+    dist: {
+        dest: "system-modules/module-lib/core-for-system-modules.jar",
+        targets: dist_targets,
+    },
+}
+
+// Used when compiling higher-level code with sdk_version "module_current"
+java_system_modules {
+    name: "core-module-lib-stubs-system-modules",
+    libs: [
+        "core-module-lib-stubs-for-system-modules",
+    ],
     visibility: ["//visibility:public"],
 }