[llvm] [Support] Don't use StringRef::equals in Path.inc (PR #98839)

[Rainer Orth via llvm-commits]

https://github.com/rorth created https://github.com/llvm/llvm-project/pull/98839

The removal of StringRef::equals in
3fa409f2318ef790cc44836afe9a72830715ad84 broke the [Solaris/sparcv9](https://lab.llvm.org/buildbot/#/builders/13/builds/724) and [Solaris/amd64](https://lab.llvm.org/staging/#/builders/94/builds/5176) buildbots:
```
In file included from /vol/llvm/src/llvm-project/git/llvm/lib/Support/Path.cpp:1200:
/vol/llvm/src/llvm-project/git/llvm/lib/Support/Unix/Path.inc:519:18: error: no member named 'equals' in 'llvm::StringRef'
  519 |   return !fstype.equals("nfs");
      |           ~~~~~~ ^
```

Fixed by switching to `operator!=` instead.

Tested on sparcv9-sun-solaris2.11 and amd64-pc-solaris2.11.

>From 5af2fa6261407822e9f621d3936a4fbddcdec03f Mon Sep 17 00:00:00 2001
From: Rainer Orth <ro at gcc.gnu.org>
Date: Sun, 14 Jul 2024 23:47:02 +0200
Subject: [PATCH] [Support] Don't use StringRef::equals in Path.inc

The removal of StringRef::equals in
3fa409f2318ef790cc44836afe9a72830715ad84 broke the
[Solaris/sparcv9](https://lab.llvm.org/buildbot/#/builders/13/builds/724)
and [Solaris/amd64](https://lab.llvm.org/staging/#/builders/94/builds/5176)
buildbots:
```
In file included from /vol/llvm/src/llvm-project/git/llvm/lib/Support/Path.cpp:1200:
/vol/llvm/src/llvm-project/git/llvm/lib/Support/Unix/Path.inc:519:18: error: no member named 'equals' in 'llvm::StringRef'
  519 |   return !fstype.equals("nfs");
      |           ~~~~~~ ^
```

Fixed by switching to `operator!=` instead.

Tested on sparcv9-sun-solaris2.11 and amd64-pc-solaris2.11.
---
 llvm/lib/Support/Unix/Path.inc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/llvm/lib/Support/Unix/Path.inc b/llvm/lib/Support/Unix/Path.inc
index 6e679f74869f0..cf05db546e021 100644
--- a/llvm/lib/Support/Unix/Path.inc
+++ b/llvm/lib/Support/Unix/Path.inc
@@ -516,7 +516,7 @@ static bool is_local_impl(struct STATVFS &Vfs) {
   // target
   StringRef fstype(Vfs.f_basetype);
   // NFS is the only non-local fstype??
-  return !fstype.equals("nfs");
+  return fstype != "nfs";
 #elif defined(_AIX)
   // Call mntctl; try more than twice in case of timing issues with a concurrent
   // mount.