(DO NOT MERGE) Fix checking capitalized word code

This is a follow up change of If6c0edef.
This is a cherry-pick of Idb415f53 from Master.

Bug: 5328922
Change-Id: I36d8bda9fb95e4809598296226c598a9f08bd8bb
diff --git a/java/src/com/android/inputmethod/latin/WordComposer.java b/java/src/com/android/inputmethod/latin/WordComposer.java
index a79e6dc..adc5637 100644
--- a/java/src/com/android/inputmethod/latin/WordComposer.java
+++ b/java/src/com/android/inputmethod/latin/WordComposer.java
@@ -106,7 +106,7 @@
 
     private static boolean isFirstCharCapitalized(int index, int codePoint, boolean previous) {
         if (index == 0) return Character.isUpperCase(codePoint);
-        return previous && Character.isLowerCase(codePoint);
+        return previous && !Character.isUpperCase(codePoint);
     }
 
     /**