RFR: 8337797: Additional ExternalAddress cleanup [v2]

[Vladimir Kozlov]

> While working on [JDK-8337519](https://bugs.openjdk.org/browse/JDK-8337519) I noticed few ExternalAddress cases I missed in [JDK-8337396](https://bugs.openjdk.org/browse/JDK-8337396) changes.
> 
> I also added asserts on x86 to catch using ExternalAddress for jumps and calls instructions and caught few additional cases (Windows and arraycopy cases).
> 
> Tested tier1-5,hs-stress,hs-comp

Vladimir Kozlov has updated the pull request incrementally with one additional commit since the last revision:

  riscv update

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/20470/files
  - new: https://git.openjdk.org/jdk/pull/20470/files/0d996c0a..df0d257d

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=20470&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=20470&range=00-01

  Stats: 6 lines in 1 file changed: 0 ins; 5 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/20470.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/20470/head:pull/20470

PR: https://git.openjdk.org/jdk/pull/20470