Add debug log for subtypes.

Change-Id: I7941adeab3357db1ceb7bc0c9c01a01d6ac9cf98
diff --git a/java/src/com/android/inputmethod/latin/SubtypeSwitcher.java b/java/src/com/android/inputmethod/latin/SubtypeSwitcher.java
index 21c99fe..b765fad 100644
--- a/java/src/com/android/inputmethod/latin/SubtypeSwitcher.java
+++ b/java/src/com/android/inputmethod/latin/SubtypeSwitcher.java
@@ -155,6 +155,7 @@
                 && mIsSystemLanguageSameAsInputLanguage);
         if (foundCurrentSubtypeBecameDisabled) {
             if (DBG) {
+                Log.w(TAG, "Current subtype: " + mInputLocaleStr + ", " + mMode);
                 Log.w(TAG, "Last subtype was disabled. Update to the current one.");
             }
             updateSubtype(mImm.getCurrentInputMethodSubtype());