[lld] [lld][AArch64] Fix getImplicitAddend in big-endian mode. (PR #107845)

[Simon Tatham via llvm-commits]

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@@ -11,15 +11,25 @@ REQUIRES: aarch64
 ## .reloc directives containing no addend, this succeeds.
 
 # RUN: rm -rf %t && split-file %s %t && cd %t
+
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statham-arm wrote:

Yes. The set of `RUN` lines is now divided into three: that single initial common-setup line that makes the working directory, and then two sections extremely similar to each other which do the little- and big-endian versions of the test. Without that blank line, the two similar sections would be less obviously similar, because one would contain the extra setup command.

(And I didn't want to run the setup command twice, deleting the LE version of the test dir, because if the test fails, it's useful to have _both_ sets of output files in the temp directory to examine.)

https://github.com/llvm/llvm-project/pull/107845