Add Android.bp and TEST_MAPPING

Bug: 156285485
Test: mma && atest --host -c --include-subdirs external/rust
Change-Id: I6ff389a226e6452978b55a855d5c2e89066ad02f
diff --git a/Android.bp b/Android.bp
new file mode 100644
index 0000000..9074bac
--- /dev/null
+++ b/Android.bp
@@ -0,0 +1,43 @@
+// This file is generated by cargo2android.py --run --device --tests --dependencies.
+
+rust_proc_macro {
+    name: "libstructopt_derive",
+    crate_name: "structopt_derive",
+    srcs: ["src/lib.rs"],
+    edition: "2018",
+    rustlibs: [
+        "libheck",
+        "libproc_macro2",
+        "libproc_macro_error",
+        "libquote",
+        "libsyn",
+    ],
+}
+
+rust_test_host {
+    name: "structopt-derive_host_test_src_lib",
+    crate_name: "structopt_derive",
+    srcs: ["src/lib.rs"],
+    test_suites: ["general-tests"],
+    auto_gen_config: true,
+    edition: "2018",
+    rustlibs: [
+        "libheck",
+        "libproc_macro2",
+        "libproc_macro_error",
+        "libquote",
+        "libsyn",
+    ],
+}
+
+// dependent_library ["feature_list"]
+//   heck-0.3.1
+//   proc-macro-error-1.0.3
+//   proc-macro-error-attr-1.0.3
+//   proc-macro2-1.0.19 "default,proc-macro"
+//   quote-1.0.7 "default,proc-macro"
+//   syn-1.0.36 "clone-impls,default,derive,full,parsing,printing,proc-macro,quote"
+//   syn-mid-0.5.0
+//   unicode-segmentation-1.6.0
+//   unicode-xid-0.2.1 "default"
+//   version_check-0.9.2