RFR: 8341755: Optimize argNames in InnerClassLambdaMetafactory [v5]

[Chen Liang]

On Tue, 8 Oct 2024 22:34:38 GMT, Shaojin Wen <swen at openjdk.org> wrote:

>> A simple optimization that eliminates the allocation of the MethodTypeDescImpl object when parameterCount is equal to 0 and eliminates the allocation of argNames when parameterCount is equal to 1
>
> Shaojin Wen has updated the pull request incrementally with one additional commit since the last revision:
> 
>   fix merge error

Trivial merge.

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Marked as reviewed by liach (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/21399#pullrequestreview-2355655137