Skip SO archive entries in buildDeoptimisedManifestForLibs

Summary:
Filter out `lib_soa_*` entries in `Manifest.buildDeoptimisedManifestForLibs`
so that superpack SO archives are not mistakenly treated as regular shared
libraries. This ensures `createSoSourceForLibs` continues to return null for
SO archive modules. Added a test to verify this behavior.

Reviewed By: adicatana

Differential Revision: D94379973

fbshipit-source-id: aafe3c639b2c4f1cc177073fb2eb89b9753b9f8f

Author: michalgr

java/com/facebook/soloader/Manifest.java

@@ -103,11 +103,15 @@ public static Manifest buildDeoptimisedManifestForLibs(ZipFile zipFile, String a
       ZipEntry entry = entries.nextElement();
       String name = entry.getName();
       if (name.startsWith(prefix) && name.endsWith(".so")) {
+        String libName = name.substring(prefix.length());
+        if (libName.startsWith("lib_soa_")) {
+          continue; // Skip SO archive entries
+        }
         int flags = Library.FLAG_UNKNOWN_DEPS;
         if (entry.getMethod() != ZipEntry.STORED) {
           flags |= Library.FLAG_COMPRESSED;
         }
-        libs.add(new Library(name.substring(prefix.length()), flags));
+        libs.add(new Library(libName, flags));
       }
     }