RFR: 8311661: Resolve duplicate symbol of StringTable::StringTable with JDK static linking [v4]

[Jiangli Zhou]

> Move StringTable to JavaClassFile namespace.

Jiangli Zhou has updated the pull request incrementally with one additional commit since the last revision:

  Add hotspot_jvm:: to StringTable in javaClasses.hpp.

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Changes:
  - all: https://git.openjdk.org/jdk/pull/14808/files
  - new: https://git.openjdk.org/jdk/pull/14808/files/3385b743..db681ecf

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=14808&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=14808&range=02-03

  Stats: 2 lines in 1 file changed: 1 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/14808.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/14808/head:pull/14808

PR: https://git.openjdk.org/jdk/pull/14808