RFR: JDK-8300087: Replace NULL with nullptr in share/cds/ [v2]

[Johan Sjölen]

> Do the conversion in the share/cds/ sub-directory and all of its files.

Johan Sjölen has updated the pull request incrementally with one additional commit since the last revision:

  Capital letter

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Changes:
  - all: https://git.openjdk.org/jdk/pull/12090/files
  - new: https://git.openjdk.org/jdk/pull/12090/files/de43d4ca..2217ceff

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=12090&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=12090&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/12090.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/12090/head:pull/12090

PR: https://git.openjdk.org/jdk/pull/12090