RFR: 8358230: Incorrect location for the assert for blob != nullptr in CodeBlob::create

[Vladimir Kozlov]

On Sat, 31 May 2025 20:45:56 GMT, Ashutosh Mehra <asmehra at openjdk.org> wrote:

> A trivial fix to moves the assert for `blob != nullptr` before any usage of the the `blob`

Yes, it is trivial.

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Marked as reviewed by kvn (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/25566#pullrequestreview-2884824886