RFR: 8259957: Build failure without C1 Compiler after JDK-8258004

[Jie Fu]

Hi all,

Please review the trivial fix for a build failure without C1 compiler.
For more info, please refer to the JBS: https://bugs.openjdk.java.net/browse/JDK-8259957

Thanks.
Best regards,
Jie

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Commit messages:
 - 8259957: Build failure without C1 Compiler after JDK-8258004

Changes: https://git.openjdk.java.net/jdk/pull/2139/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=2139&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8259957
  Stats: 2 lines in 1 file changed: 2 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/2139.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/2139/head:pull/2139

PR: https://git.openjdk.java.net/jdk/pull/2139