No completions offered after (*this). in template class

[HighCommander4]

In the following code:

template <typename T>
class Foo {
  void method1() {
    (*this).^
  }
  void method2() {}
};

code completion at the ^ does not offer members of the class.

It works with this-> and in non-template classes.

[HighCommander4]

This seems to be enough to fix it:

diff --git a/clang/lib/Sema/SemaCodeComplete.cpp b/clang/lib/Sema/SemaCodeComplete.cpp
index c44be0df9b0a..0e44b0f444ed 100644
--- a/clang/lib/Sema/SemaCodeComplete.cpp
+++ b/clang/lib/Sema/SemaCodeComplete.cpp
@@ -20,6 +20,7 @@
 #include "clang/AST/ExprConcepts.h"
 #include "clang/AST/ExprObjC.h"
 #include "clang/AST/NestedNameSpecifier.h"
+#include "clang/AST/OperationKinds.h"
 #include "clang/AST/QualTypeNames.h"
 #include "clang/AST/RecursiveASTVisitor.h"
 #include "clang/AST/Type.h"
@@ -5674,6 +5675,11 @@ QualType getApproximateType(const Expr *E) {
         return getApproximateType(VD->getInit());
     }
   }
+  if (const auto *UO = llvm::dyn_cast<UnaryOperator>(E)) {
+    if (UO->getOpcode() == UnaryOperatorKind::UO_Deref) {
+      return UO->getSubExpr()->getType()->getPointeeType();
+    }
+  }
   return Unresolved;
 }

[HighCommander4]

I put the fix + a test up at llvm/llvm-project#86466