RFR: 8254369: Node::disconnect_inputs may skip precedences [v2]

[Xin Liu]

> 8254369: Node::disconnect_inputs may skip precedences

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

  8254369: Node::disconnect_inputs may skip precedences
  
  use ASSERT for the sanity check

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/664/files
  - new: https://git.openjdk.java.net/jdk/pull/664/files/f3f9c27b..bc809ffc

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=664&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=664&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/664.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/664/head:pull/664

PR: https://git.openjdk.java.net/jdk/pull/664