RFR: 8287493: 32-bit Windows build failure in codeBlob.cpp after JDK-8283689

[Aleksey Shipilev]

See the bug report for example build failure. This breakage is widely seen on many build servers. The fix follows what [https://bugs.openjdk.org/browse/JDK-8210803](JDK-8210803) did for other blobs.

Additional testing:
 - [ ] Windows x86_32 build

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Commit messages:
 - Fix

Changes: https://git.openjdk.java.net/jdk/pull/9088/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=9088&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8287493
  Stats: 4 lines in 1 file changed: 4 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/9088.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/9088/head:pull/9088

PR: https://git.openjdk.java.net/jdk/pull/9088