Googletest export

Mark ACTION_Pn()-generated functions as must-use-result.

This catches when a client creates an action and discards it, thinking that the action has actually been applied to something.

This will help people who make the mistake of defining, for example, both `void Use(Foo*)` and `ACTION(Use) { Use(arg); }` for later application to a Foo.  With such an overload, a client may then write `Use();`, forgetting the param and being confused why nothing happens.

This also catches when a client defines their own action in terms of an ACTION()-generated one, invokes the ACTION's builder, and then fails to invoke the resulting action, thinking it's operating on the outer action's parameters.

PiperOrigin-RevId: 330614454

googlemock/include/gmock/gmock-generated-actions.h

@@ -294,6 +294,20 @@
         p7(::std::move(gmock_p7)), p8(::std::move(gmock_p8)), \
         p9(::std::move(gmock_p9))
 
+// Defines the copy constructor
+#define GMOCK_INTERNAL_DEFN_COPY_AND_0_VALUE_PARAMS() \
+    {}  // Work around https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82134
+#define GMOCK_INTERNAL_DEFN_COPY_AND_1_VALUE_PARAMS(...) = default;
+#define GMOCK_INTERNAL_DEFN_COPY_AND_2_VALUE_PARAMS(...) = default;
+#define GMOCK_INTERNAL_DEFN_COPY_AND_3_VALUE_PARAMS(...) = default;
+#define GMOCK_INTERNAL_DEFN_COPY_AND_4_VALUE_PARAMS(...) = default;
+#define GMOCK_INTERNAL_DEFN_COPY_AND_5_VALUE_PARAMS(...) = default;
+#define GMOCK_INTERNAL_DEFN_COPY_AND_6_VALUE_PARAMS(...) = default;
+#define GMOCK_INTERNAL_DEFN_COPY_AND_7_VALUE_PARAMS(...) = default;
+#define GMOCK_INTERNAL_DEFN_COPY_AND_8_VALUE_PARAMS(...) = default;
+#define GMOCK_INTERNAL_DEFN_COPY_AND_9_VALUE_PARAMS(...) = default;
+#define GMOCK_INTERNAL_DEFN_COPY_AND_10_VALUE_PARAMS(...) = default;
+
 // Declares the fields for storing the value parameters.
 #define GMOCK_INTERNAL_DEFN_AND_0_VALUE_PARAMS()
 #define GMOCK_INTERNAL_DEFN_AND_1_VALUE_PARAMS(p0) p0##_type p0;
@@ -422,6 +436,11 @@
    public:\
     explicit GMOCK_ACTION_CLASS_(name, value_params)\
         GMOCK_INTERNAL_INIT_##value_params {}\
+    GMOCK_ACTION_CLASS_(name, value_params)(\
+        const GMOCK_ACTION_CLASS_(name, value_params)<\
+            GMOCK_INTERNAL_LIST_##template_params\
+            GMOCK_INTERNAL_LIST_TYPE_##value_params>&)\
+        GMOCK_INTERNAL_DEFN_COPY_##value_params\
     template <typename F>\
     class gmock_Impl : public ::testing::ActionInterface<F> {\
      public:\
@@ -444,6 +463,12 @@
     }\
     GMOCK_INTERNAL_DEFN_##value_params\
   };\
+  template <GMOCK_INTERNAL_DECL_##template_params\
+            GMOCK_INTERNAL_DECL_TYPE_##value_params>\
+  GMOCK_ACTION_CLASS_(name, value_params)<\
+      GMOCK_INTERNAL_LIST_##template_params\
+      GMOCK_INTERNAL_LIST_TYPE_##value_params> name(\
+          GMOCK_INTERNAL_DECL_##value_params) GTEST_MUST_USE_RESULT_;\
   template <GMOCK_INTERNAL_DECL_##template_params\
             GMOCK_INTERNAL_DECL_TYPE_##value_params>\
   inline GMOCK_ACTION_CLASS_(name, value_params)<\