ApplicationLoaders: improve classloader cache errs

When zygote preloads a classloader, but at runtime, a different one is
used, we get an error and fallback. This error is improved in the
following ways:
- print the zip name with the shared libraries, so we know which library
  the error is for
- distinguish cached from runtime dependencies in the error message
  itself

Bug: 163886868
Test: N/A
Change-Id: I3f4c4078e9eb05b83058982afc7b7ea0822d1257

core/java/android/app/ApplicationLoaders.java

@@ -232,8 +232,8 @@ public class ApplicationLoaders {
 
         // cached must be built and loaded in the same environment
         if (!sharedLibrariesEquals(sharedLibraries, cached.sharedLibraries)) {
-            Log.w(TAG, "Unexpected environment for cached library: (" + sharedLibraries + "|"
-                    + cached.sharedLibraries + ")");
+            Log.w(TAG, "Unexpected environment loading cached library " + zip + " (real|cached): ("
+                    + sharedLibraries + "|" + cached.sharedLibraries + ")");
             return null;
         }