RFR: 8251505: Use of types in compiler shared code should be consistent. [v6]

[Yi-Fan Tsai]

> 8251505: Use of types in compiler shared code should be consistent.

Yi-Fan Tsai has refreshed the contents of this pull request, and previous commits have been removed. The incremental views will show differences compared to the previous content of the PR. The pull request contains one new commit since the last revision:

  Use jlong instead of int64_t

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/7294/files
  - new: https://git.openjdk.java.net/jdk/pull/7294/files/22fbe08a..bca7b783

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=7294&range=05
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=7294&range=04-05

  Stats: 0 lines in 0 files changed: 0 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/7294.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/7294/head:pull/7294

PR: https://git.openjdk.java.net/jdk/pull/7294