[clang] Add error check for HeuristicResolver (PR #155561)

[Nathan Ridge via cfe-commits]

================
@@ -658,13 +658,15 @@ class ASTBuilderAction : public ToolAction {
                                             Invocation->getDiagnosticOpts(),
                                             DiagConsumer,
                                             /*ShouldOwnClient=*/false),
-        Files);
+        Files, false, CaptureKinds);
     if (!AST)
       return false;
 
     ASTs.push_back(std::move(AST));
     return true;
   }
+
+  CaptureDiagsKind CaptureKinds{CaptureDiagsKind::None};
----------------
HighCommander4 wrote:

I would make this a private field set via a (possibly optional) constructor parameter

https://github.com/llvm/llvm-project/pull/155561