Update error message wording per review feedback

Change "not compatible with" to "not the same as" since closures
with different source locations aren't about compatibility.

Author: iliaal

ext/reflection/php_reflection.c

@@ -3456,7 +3456,7 @@ static void reflection_method_invoke(INTERNAL_FUNCTION_PARAMETERS, int variadic)
 				if (!variadic) {
 					efree(params);
 				}
-				_DO_THROW("Given Closure is not compatible with the reflected Closure");
+				_DO_THROW("Given Closure is not the same as the reflected Closure");
 				RETURN_THROWS();
 			}
 		}

ext/reflection/tests/gh21362.phpt

@@ -46,8 +46,8 @@ foreach ($closures as $closure) {
 ?>
 --EXPECT--
 c1: foo=FOO, bar=BAR
-Given Closure is not compatible with the reflected Closure
-Given Closure is not compatible with the reflected Closure
+Given Closure is not the same as the reflected Closure
+Given Closure is not the same as the reflected Closure
 int(0)
 int(1)
 int(2)