RFR: 8258653: CallJavaNode::_bci is not in use [v2]

[Xin Liu]

> The member variable CallJavaNode::_bci is completely dead in release build. 
> In debug builds, CallJavaNode::validate_symbolic_info does refer to it, but 
> the information can obtain from jvms()->bci(). CallJavaNode also copies _bci 
> to MachCallJavaNode, but CodeGen doesn't use it as well.

Xin Liu has updated the pull request incrementally with one additional commit since the last revision:

  fix ppc64 build

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

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/1834/files
  - new: https://git.openjdk.java.net/jdk/pull/1834/files/c83e5f2d..2bc8211d

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=1834&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=1834&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 1 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/1834.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/1834/head:pull/1834

PR: https://git.openjdk.java.net/jdk/pull/1834