[jdk11u-dev] RFR: 8248816: C1: Fix signature conflict in LIRGenerator::strength_reduce_multiply

[Reka Kovacs]

Changes apply cleanly.

This is step 10 out of 19 in the Windows/AArch64 backport.

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Commit messages:
 - Backport d3776c7d30f23489c04518d20d441c2ec2f06705

Changes: https://git.openjdk.java.net/jdk11u-dev/pull/269/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=269&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8248816
  Stats: 4 lines in 4 files changed: 0 ins; 0 del; 4 mod
  Patch: https://git.openjdk.java.net/jdk11u-dev/pull/269.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk11u-dev pull/269/head:pull/269

PR: https://git.openjdk.java.net/jdk11u-dev/pull/269