[clang-tidy] Add additional test for readability-redundant-inline-specifier

Signed-off-by: Björn Svensson <[email protected]>

Author: bjosv

clang-tools-extra/test/clang-tidy/checkers/readability/redundant-inline-specifier.cpp

@@ -149,3 +149,15 @@ class A
   // CHECK-FIXES-STRICT: static float test4;
 };
 }
+
+namespace ns {
+class B
+{
+public:
+  ~B();
+};
+
+inline B::~B() = default;
+// CHECK-MESSAGES: :[[@LINE-1]]:1: warning: function '~B' has inline specifier but is implicitly inlined [readability-redundant-inline-specifier]
+// CHECK-FIXES: B::~B() = default;
+}