`LambdaForm` declares int constants for `BasicType::ordinal` to workaround JDK-8161245. Now these int constants are no longer needed. This removes these int constants and reference `BasicType` enums directly.
------------- Commit messages: - JDK-8301460: Code in LambdaForm.java still refers to resolved JDK-8161245 Changes: https://git.openjdk.org/jdk/pull/12546/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=12546&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8301460 Stats: 29 lines in 3 files changed: 9 ins; 10 del; 10 mod Patch: https://git.openjdk.org/jdk/pull/12546.diff Fetch: git fetch https://git.openjdk.org/jdk pull/12546/head:pull/12546 PR: https://git.openjdk.org/jdk/pull/12546
