RFR: 8261846: [JVMCI] c2v_iterateFrames can get out of sync with the StackFrameStream [v2]

[Tom Rodriguez]

> c2v_iterateFrames mixes a StackFrameSteam and vframes and the vframe factory method can silently skip stub frames. The could leave the StackFrameStream out of sync with the vframe walk. This can cause the iteration fail in strange ways and assert in fastdebug builds.

Tom Rodriguez has updated the pull request incrementally with one additional commit since the last revision:

  Update copyright year

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/2594/files
  - new: https://git.openjdk.java.net/jdk/pull/2594/files/45f83f12..1da3a26f

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=2594&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=2594&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/2594.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/2594/head:pull/2594

PR: https://git.openjdk.java.net/jdk/pull/2594