Simplify useCount and avoid calling lastUseIndex for a small startup win. -------------
Commit messages: - Simplify LambdaForm.useCount Changes: https://git.openjdk.java.net/jdk/pull/2940/files Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=2940&range=00 Issue: https://bugs.openjdk.java.net/browse/JDK-8263450 Stats: 16 lines in 1 file changed: 4 ins; 6 del; 6 mod Patch: https://git.openjdk.java.net/jdk/pull/2940.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/2940/head:pull/2940 PR: https://git.openjdk.java.net/jdk/pull/2940
