[6.0] [PackageCMO] Override flags that prevent inlining with diagnostics.

[elsh]

• Explanation: Override flags that prevent inlining with diagnostics.
• Scope: Affected only if -experimental-allow-non-resilient-access is passed.
• Original PR: Override flags that prevent package-cmo if allow-non-resilient-access is enabled #73717
• Risk: Low. Changes are behind a flag and only affects builds that use the flag.
• Testing: Added new cases to tests.
• Issue: rdar://128413200&128647016
• Reviewer: @tshortli

[elsh]

@swift-ci test

[elsh]

Included in #73993