[clang] Introduce `SemaCodeCompletion` (#92311)

This patch continues previous efforts to split `Sema` up, this time
covering code completion.
Context can be found in #84184.
Dropping `Code` prefix from function names in `SemaCodeCompletion` would
make sense, but I think this PR has enough changes already.
As usual, formatting changes are done as a separate commit. Hopefully
this helps with the review.

1 files changed, 3 insertions, 2 deletions

diff --git a/clang/lib/Frontend/ASTUnit.cpp b/clang/lib/Frontend/ASTUnit.cpp
index 755aadd..8d24d5d 100644
--- a/clang/lib/Frontend/ASTUnit.cpp
+++ b/clang/lib/Frontend/ASTUnit.cpp
@@ -56,6 +56,7 @@
 #include "clang/Sema/CodeCompleteConsumer.h"
 #include "clang/Sema/CodeCompleteOptions.h"
 #include "clang/Sema/Sema.h"
+#include "clang/Sema/SemaCodeCompletion.h"
 #include "clang/Serialization/ASTBitCodes.h"
 #include "clang/Serialization/ASTReader.h"
 #include "clang/Serialization/ASTWriter.h"
@@ -375,8 +376,8 @@ void ASTUnit::CacheCodeCompletionResults() {
   SmallVector<Result, 8> Results;
   CachedCompletionAllocator = std::make_shared<GlobalCodeCompletionAllocator>();
   CodeCompletionTUInfo CCTUInfo(CachedCompletionAllocator);
-  TheSema->GatherGlobalCodeCompletions(*CachedCompletionAllocator,
-                                       CCTUInfo, Results);
+  TheSema->CodeCompletion().GatherGlobalCodeCompletions(
+      *CachedCompletionAllocator, CCTUInfo, Results);
 
   // Translate global code completions into cached completions.
   llvm::DenseMap<CanQualType, unsigned> CompletionTypes;