Create core_platform system modules from .txt files

Create a parallel set of java_system_modules that build using stubs from
.txt files. decodeSdkDep will be updated to use these system modules
behind a flag.

Since stub generation from .txt is not available at ToT yet, these
modules have been marked "enabled: false"

Test: None (will test when the enabled flag is turned on)
Change-Id: Ie9d465f5542a5430f03ba2e0861325011ac8e8c5
diff --git a/java/core-libraries/TxtStubLibraries.bp b/java/core-libraries/TxtStubLibraries.bp
index 0046d68..b63ce42 100644
--- a/java/core-libraries/TxtStubLibraries.bp
+++ b/java/core-libraries/TxtStubLibraries.bp
@@ -82,3 +82,61 @@
     // TODO: Enable after stub generation from .txt file is available
     enabled: false,
 }
+
+// Same as legacy-core-platform-api-stubs-system-modules, but the stubs are generated from .txt files
+java_system_modules {
+    name: "legacy-core-platform-api-stubs-system-modules.from-text",
+    visibility: core_platform_visibility,
+    libs: [
+        "legacy.core.platform.api.no.annotations.stubs.from-text",
+        "core-lambda-stubs-for-system-modules",
+    ],
+    // TODO: Enable after stub generation from .txt file is available
+    enabled: false,
+}
+
+java_library {
+    name: "legacy.core.platform.api.no.annotations.stubs.from-text",
+    visibility: core_platform_visibility,
+    defaults: [
+        "system-modules-no-annotations",
+    ],
+    hostdex: true,
+    compile_dex: true,
+
+    static_libs: [
+        "legacy.core.platform.api.stubs.from-text",
+    ],
+    patch_module: "java.base",
+    // TODO: Enable after stub generation from .txt file is available
+    enabled: false,
+}
+
+// Same as stable-core-platform-api-stubs-system-modules, but the stubs are generated from .txt files
+java_system_modules {
+    name: "stable-core-platform-api-stubs-system-modules.from-text",
+    visibility: core_platform_visibility,
+    libs: [
+        "stable.core.platform.api.no.annotations.stubs.from-text",
+        "core-lambda-stubs-for-system-modules",
+    ],
+    // TODO: Enable after stub generation from .txt file is available
+    enabled: false,
+}
+
+java_library {
+    name: "stable.core.platform.api.no.annotations.stubs.from-text",
+    visibility: core_platform_visibility,
+    defaults: [
+        "system-modules-no-annotations",
+    ],
+    hostdex: true,
+    compile_dex: true,
+
+    static_libs: [
+        "stable.core.platform.api.stubs.from-text",
+    ],
+    patch_module: "java.base",
+    // TODO: Enable after stub generation from .txt file is available
+    enabled: false,
+}