Be more precise when diagnosing 'inline' on global replacement functions
Sema: Explain our deviation from the standard by referencing the, now open, LWG issue.
Fix typo in test's XFAIL line. Patch by Dimitry Andric!
Don't eliminate a partially redundant load if it's in a landing pad.

A landing pad can be jumped to only by the unwind edge of an invoke
instruction. If we eliminate a partially redundant load in a landing pad, it
will create a basic block that violates this constraint. It then leads to other
problems down the line if it tries to merge that basic block with the landing
pad. Avoid this by not eliminating the load in a landing pad.

PR17621