git: openjdk/jdk-sandbox: classfile-api-branch: CodeBuilder fixes and increased test coverage

[Adam Sotona]

Changeset: 0c80bffc
Author:    Adam Sotona <asotona at openjdk.org>
Date:      2022-07-18 16:48:32 +0000
URL:       https://git.openjdk.org/jdk-sandbox/commit/0c80bffc75b7602ed5835f4a7a387b63ad035ab2

CodeBuilder fixes and increased test coverage

! src/java.base/share/classes/jdk/classfile/CodeBuilder.java
! test/jdk/jdk/classfile/helpers/RebuildingTransformation.java