[clang] [Clang] Add masked vector builtins for expand and compress access (PR #156042)

[Joseph Huber via cfe-commits]

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@@ -11016,7 +11016,7 @@ def err_sizeless_nonlocal : Error<
 def err_vec_masked_load_store_ptr : Error<
  "%ordinal0 argument must be a %1">;
 def err_vec_masked_load_store_size : Error<
- "all arguments to %0 must have the same number of elements (was %1 and %2)">;
+ "all arguments must have the same number of elements (was %0 and %1)">;
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jhuber6 wrote:

It was annoying because the names are different depending on who called it and I didn't think it was necessary since the vast majority of diagnostics don't point out the name since they already direst you to the exact line and column. 

https://github.com/llvm/llvm-project/pull/156042