Fix regression caused by overload resolution.

[AaronRobinsonMSFT]

Introduced by #113715

Fixes #114696

See #114696 (comment)

Thanks @tfenise

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[Copilot]

Pull Request Overview

This pull request fixes a regression caused by overload resolution by updating the internal API calls.

• Updated the call in SpanHelpers.ByteMemOps.cs to use Buffer.MemmoveInternal.
• Renamed the internal method in Buffer.cs from Memmove to MemmoveInternal to resolve overload ambiguity.

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
src/libraries/System.Private.CoreLib/src/System/SpanHelpers.ByteMemOps.cs	Updated the method call to use the newly renamed internal method.
src/libraries/System.Private.CoreLib/src/System/Buffer.cs	Renamed the method to MemmoveInternal to clear up overload resolution issues.

Comments suppressed due to low confidence (1)

src/libraries/System.Private.CoreLib/src/System/Buffer.cs:130

• Verify that renaming the internal method from 'Memmove' to 'MemmoveInternal' clarifies its intended use without breaking internal dependencies.

internal static unsafe void MemmoveInternal(ref byte dest, ref byte src, nuint len)

[AaronRobinsonMSFT]

/cc @jkotas

[jkotas]

Thanks