RFR: 8289427: compiler/compilercontrol/jcmd/ClearDirectivesFileStackTest.java failed with null setting [v2]

[KIRIYAMA Takuya]

> The problem of JDK-8289427 is caused by using incorrect compiler settings when the auto generated INTRINSIC parameter is null.
> I fixed it to use the appropriate value if the argument of cmd was null.
> Please review this change.

KIRIYAMA Takuya has updated the pull request incrementally with one additional commit since the last revision:

  8289427: compiler/compilercontrol/jcmd/ClearDirectivesFileStackTest.java failed with null setting

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Changes:
  - all: https://git.openjdk.org/jdk/pull/9318/files
  - new: https://git.openjdk.org/jdk/pull/9318/files/ca8e51c6..505529dd

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=9318&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=9318&range=00-01

  Stats: 1 line in 1 file changed: 1 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/9318.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/9318/head:pull/9318

PR: https://git.openjdk.org/jdk/pull/9318