In #20611 and other investigations, we noted that `MethodTypeDesc.ofDescriptor` is unnecessarily called due to missing caching in ClassBuilder. This patch adds that missing caching functionality.
------------- Commit messages: - 8338543: ClassBuilder withMethod builders should cache the method type symbol Changes: https://git.openjdk.org/jdk/pull/20627/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=20627&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8338543 Stats: 22 lines in 3 files changed: 18 ins; 3 del; 1 mod Patch: https://git.openjdk.org/jdk/pull/20627.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/20627/head:pull/20627 PR: https://git.openjdk.org/jdk/pull/20627
