[lworld] RFR: 8325343: [lworld] java/lang/reflect/Proxy/ClassRestrictions.java fails with NPE [v2]

[Mandy Chung]

> Trivial 1-line fix is to check if the type is found or not before calling `PrimitiveClass::asPrimaryType`.

Mandy Chung has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains two additional commits since the last revision:

 - Remove from problem list
 - 8325343: [lworld] java/lang/reflect/Proxy/ClassRestrictions.java fails with NPE

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Changes:
  - all: https://git.openjdk.org/valhalla/pull/996/files
  - new: https://git.openjdk.org/valhalla/pull/996/files/8852511a..debb26df

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=valhalla&pr=996&range=01
 - incr: https://webrevs.openjdk.org/?repo=valhalla&pr=996&range=00-01

  Stats: 50 lines in 4 files changed: 11 ins; 38 del; 1 mod
  Patch: https://git.openjdk.org/valhalla/pull/996.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/996/head:pull/996

PR: https://git.openjdk.org/valhalla/pull/996