[clang-tools-extra] [clang-tidy] Add option to keep virtual in 'modernize-use-override' (PR #144916)

[Baranov Victor via cfe-commits]

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@@ -0,0 +1,25 @@
+// RUN: %check_clang_tidy %s modernize-use-override %t -- \
+// RUN:   -config="{CheckOptions: {modernize-use-override.AllowVirtual: true}}"
+
+struct Base {
+  virtual ~Base();
+  virtual void a();
+  virtual void b();
+  virtual void c();
+};
+
+struct Derived : public Base {
+  virtual ~Derived() override;
+
+  virtual void a() override;
+  // CHECK-MESSAGES-NOT: warning:
+  // CHECK-FIXES: {{^}}  virtual void a() override;
+
+  virtual void b();
+  // CHECK-MESSAGES: :[[@LINE-1]]:16: warning: add 'override'
+  // CHECK-FIXES: {{^}}  virtual void b() override;
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vbvictor wrote:

don't use `{{^}}`, just match string as a whole

https://github.com/llvm/llvm-project/pull/144916