optimize the construction of MethodType and MethodTypeDesc to reduce memory allocate
------------- Commit messages: - Update src/java.base/share/classes/java/lang/invoke/StringConcatFactory.java - Optimize the construction of MethodType and MethodTypeDesc to reduce memory allocate Changes: https://git.openjdk.org/jdk/pull/20704/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=20704&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8338936 Stats: 34 lines in 1 file changed: 13 ins; 9 del; 12 mod Patch: https://git.openjdk.org/jdk/pull/20704.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/20704/head:pull/20704 PR: https://git.openjdk.org/jdk/pull/20704
