[clang] [clang][deps] Cache `VFS::getRealPath()` (PR #68645)

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github-actions[bot] wrote:


<!--LLVM CODE FORMAT COMMENT: {clang-format}-->

:warning: C/C++ code formatter, clang-format found issues in your code. 
:warning:

<details>
<summary>
You can test this locally with the following command:
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``````````bash
git-clang-format --diff ac0dda894231e6281e7739aa0ea01a4e9697c747 
bdccf1e7858826b5f41791cd0826f9e230de9197 -- 
clang/include/clang/Tooling/DependencyScanning/DependencyScanningFilesystem.h 
clang/lib/Tooling/DependencyScanning/DependencyScanningFilesystem.cpp
``````````

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<details>
<summary>
View the diff from clang-format here.
</summary>

``````````diff
diff --git 
a/clang/lib/Tooling/DependencyScanning/DependencyScanningFilesystem.cpp 
b/clang/lib/Tooling/DependencyScanning/DependencyScanningFilesystem.cpp
index 01b94efce6a8..e440b1cc9d32 100644
--- a/clang/lib/Tooling/DependencyScanning/DependencyScanningFilesystem.cpp
+++ b/clang/lib/Tooling/DependencyScanning/DependencyScanningFilesystem.cpp
@@ -406,8 +406,8 @@ std::error_code 
DependencyScanningWorkerFilesystem::getRealPath(
   auto &Shard = SharedCache.getShardForFilename(*FilenameForLookup);
   if (const auto *ShardRealPath =
           Shard.findRealPathByFilename(*FilenameForLookup)) {
-    const auto &RealPath =
-        LocalCache.insertRealPathForFilename(*FilenameForLookup, 
*ShardRealPath);
+    const auto &RealPath = LocalCache.insertRealPathForFilename(
+        *FilenameForLookup, *ShardRealPath);
     return HandleCachedRealPath(RealPath);
   }
 

``````````

</details>


https://github.com/llvm/llvm-project/pull/68645
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