Expose some APIs as test APIs to facilitate CTS

Test: added new cts tests
Bug: 123896388
Merged-In: I742f23be57e731307338591d816f7888e198b333
Change-Id: I742f23be57e731307338591d816f7888e198b333
diff --git a/telecomm/java/android/telecom/TelecomManager.java b/telecomm/java/android/telecom/TelecomManager.java
index c60eb56..e655e4f 100644
--- a/telecomm/java/android/telecom/TelecomManager.java
+++ b/telecomm/java/android/telecom/TelecomManager.java
@@ -22,6 +22,7 @@
 import android.annotation.SuppressLint;
 import android.annotation.SystemApi;
 import android.annotation.SystemService;
+import android.annotation.TestApi;
 import android.annotation.UnsupportedAppUsage;
 import android.content.ComponentName;
 import android.content.Context;
@@ -560,6 +561,7 @@
      *
      * @hide
      */
+    @TestApi
     @SystemApi
     public static final int TTY_MODE_OFF = 0;
 
@@ -569,6 +571,7 @@
      *
      * @hide
      */
+    @TestApi
     @SystemApi
     public static final int TTY_MODE_FULL = 1;
 
@@ -579,6 +582,7 @@
      *
      * @hide
      */
+    @TestApi
     @SystemApi
     public static final int TTY_MODE_HCO = 2;
 
@@ -589,6 +593,7 @@
      *
      * @hide
      */
+    @TestApi
     @SystemApi
     public static final int TTY_MODE_VCO = 3;
 
@@ -827,6 +832,7 @@
      * @hide
      */
     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
+    @TestApi
     @SystemApi
     public void setUserSelectedOutgoingPhoneAccount(PhoneAccountHandle accountHandle) {
         try {
@@ -1527,6 +1533,7 @@
      * @hide
      */
     @SystemApi
+    @TestApi
     @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
     public @TtyMode int getCurrentTtyMode() {
         try {
@@ -1975,6 +1982,7 @@
      * @hide
      */
     @SystemApi
+    @TestApi
     @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
     public boolean isInEmergencyCall() {
         try {