Integrated: 8262202: [type-restrictions] RestrictedMethodTest failed to compile

[Frederic Parain]

Fix syntax in test

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Commit messages:
 - Fix test with new syntax

Changes: https://git.openjdk.java.net/valhalla/pull/347/files
 Webrev: https://webrevs.openjdk.java.net/?repo=valhalla&pr=347&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8262202
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/valhalla/pull/347.diff
  Fetch: git fetch https://git.openjdk.java.net/valhalla pull/347/head:pull/347

PR: https://git.openjdk.java.net/valhalla/pull/347