[clang] [Lex] Avoid repeated hash lookups (NFC) (PR #126462)

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llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang

Author: Kazu Hirata (kazutakahirata)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/126462.diff


1 Files Affected:

- (modified) clang/lib/Lex/ModuleMap.cpp (+4-3) 


``````````diff
diff --git a/clang/lib/Lex/ModuleMap.cpp b/clang/lib/Lex/ModuleMap.cpp
index ccf94f6345ff280..998e2b977d109ba 100644
--- a/clang/lib/Lex/ModuleMap.cpp
+++ b/clang/lib/Lex/ModuleMap.cpp
@@ -2928,9 +2928,10 @@ void ModuleMapParser::parseInferredModuleDecl(bool Framework, bool Explicit) {
     ActiveModule->InferExplicitSubmodules = Explicit;
   } else {
     // We'll be inferring framework modules for this directory.
-    Map.InferredDirectories[Directory].InferModules = true;
-    Map.InferredDirectories[Directory].Attrs = Attrs;
-    Map.InferredDirectories[Directory].ModuleMapFID = ModuleMapFID;
+    auto &InfDir = Map.InferredDirectories[Directory];
+    InfDir.InferModules = true;
+    InfDir.Attrs = Attrs;
+    InfDir.ModuleMapFID = ModuleMapFID;
     // FIXME: Handle the 'framework' keyword.
   }
 

``````````

</details>


https://github.com/llvm/llvm-project/pull/126462