Enable instrumentation of system server on debuggable devices.

This makes two changes to enable the instrumentation of system server
and other system processes:

- A new option '--no-restart' has been added to 'am instrument', that
causes the test apk to be loaded without restarting the target app.

- On debuggable devices, the check that the test apk has the same
signature as the target app is not performed.

With these changes, a test apk with instrumentation configured
with targetPackage="android" can run a test from within the system
server process, on debuggable devices. These options may also allow
other system processes to be tested.

See go/internal-api-testing for more information.

Test: atest FrameworksInProcessTests
Change-Id: I8829bcbe7f3373170bcf1e7fa869d5d31f40576d
diff --git a/services/tests/inprocesstests/Android.bp b/services/tests/inprocesstests/Android.bp
new file mode 100644
index 0000000..6dd059f
--- /dev/null
+++ b/services/tests/inprocesstests/Android.bp
@@ -0,0 +1,12 @@
+android_test {
+    name: "FrameworksInProcessTests",
+    srcs: ["src/**/*.java"],
+    static_libs: [
+        "androidx.test.core",
+        "androidx.test.rules",
+        "services.core",
+        "truth-prebuilt",
+        "platform-test-annotations",
+    ],
+    test_suites: ["general-tests"],
+}