[lworld] RFR: 8266710: [lworld] tools/javac/valhalla/lworld-values/EnhancedForLoopTest.java fails after merge

[Srikanth Adayapalam]

Fix call to asSuper to operate on reference projection.

-------------

Commit messages:
 - 8266710: tools/javac/valhalla/lworld-values/EnhancedForLoopTest.java fails after merge

Changes: https://git.openjdk.java.net/valhalla/pull/407/files
 Webrev: https://webrevs.openjdk.java.net/?repo=valhalla&pr=407&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8266710
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/valhalla/pull/407.diff
  Fetch: git fetch https://git.openjdk.java.net/valhalla pull/407/head:pull/407

PR: https://git.openjdk.java.net/valhalla/pull/407