RFR: 8331114: Further improve performance of MethodTypeDesc::descriptorString [v4]

[Claes Redestad]

On Fri, 26 Apr 2024 18:21:16 GMT, Mandy Chung <mchung at openjdk.org> wrote:

> I am glad that this only focuses on the descriptor string as `MethodTypeDesc::displayDescriptor` is typically used for debugging and exception message and not performance-sensitive.

Yes, which is why I'd really like to desugar it: this is the method where I tripped on a bootstrap circularity when print-debugging an issue in the lambda code generator. It's no fun at all hitting bootstrapping issues when calling innocuous methods in `java.lang.*`

Obviously the performance of it is not important - I was just stringing it along for consistency.

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PR Comment: https://git.openjdk.org/jdk/pull/18945#issuecomment-2080016093