RFR: 8288309: Rename the "testTagInheritence" directory

[Pavel Rappo]

Please review this triviality, a sad leftover from JDK-8280713 (#7723).

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Commit messages:
 - fix: rename directory

Changes: https://git.openjdk.org/jdk/pull/9418/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=9418&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8288309
  Stats: 0 lines in 12 files changed: 0 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/9418.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/9418/head:pull/9418

PR: https://git.openjdk.org/jdk/pull/9418