Integrated: Merge jdk16

[Jesper Wilhelmsson]

Forwardport JDK 16 -> JDK 17

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Commit messages:
 - Merge
 - 8247994: Localize javadoc search
 - 8258515: javac should issue an error if an annotation is nested in a local class or interface
 - 8258225: compiler/c2/cr6340864/TestIntVect.java runs faster in interpreter
 - 8258293: tools/jpackage/share/RuntimePackageTest.java#id0 with RuntimePackageTest.testUsrInstallDir2
 - 8257621: JFR StringPool misses cached items across consecutive recordings
 - 8257999: Parallel GC crash in gc/parallel/TestDynShrinkHeap.java: new region is not in covered_region
 - 8257636: Update usage of "type" terminology in java.lang.Class and java.lang.reflect
 - 8258505: [TESTBUG] TestDivZeroWithSplitIf.java fails due to missing UnlockDiagnosticVMOptions
 - 8254023: A module declaration is not allowed to be a target of an annotation that lacks an @Target meta-annotation

The webrevs contain the adjustments done while merging with regards to each parent branch:
 - master: https://webrevs.openjdk.java.net/?repo=jdk&pr=1827&range=00.0
 - jdk16: https://webrevs.openjdk.java.net/?repo=jdk&pr=1827&range=00.1

Changes: https://git.openjdk.java.net/jdk/pull/1827/files
  Stats: 773 lines in 63 files changed: 449 ins; 124 del; 200 mod
  Patch: https://git.openjdk.java.net/jdk/pull/1827.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/1827/head:pull/1827

PR: https://git.openjdk.java.net/jdk/pull/1827