RFR: 8255959: Timeouts in VectorConversion tests [v2]

[Martin Doerr]

> I'd like to address the remaining timeouts on PPC64. Other ones were resolved by JDK-8256581.

Martin Doerr has updated the pull request incrementally with one additional commit since the last revision:

  add whitespaces

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/1704/files
  - new: https://git.openjdk.java.net/jdk/pull/1704/files/b2af9056..dcdca38e

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=1704&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=1704&range=00-01

  Stats: 3 lines in 1 file changed: 0 ins; 0 del; 3 mod
  Patch: https://git.openjdk.java.net/jdk/pull/1704.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/1704/head:pull/1704

PR: https://git.openjdk.java.net/jdk/pull/1704