Fixed number of warnings. Fixed mingw64 build.

modules/ts/CMakeLists.txt

@@ -9,7 +9,7 @@ if(MINGW)
 endif()
 
 set(OPENCV_MODULE_IS_PART_OF_WORLD FALSE)
-   
+
 ocv_add_module(ts opencv_core)
 ocv_glob_module_sources()
 ocv_module_include_directories()
@@ -17,9 +17,6 @@ ocv_create_module()
 
 if(BUILD_SHARED_LIBS AND NOT MINGW)
   add_definitions(-DGTEST_CREATE_SHARED_LIBRARY=1)
-  if (MSVC AND NOT ENABLE_NOISY_WARNINGS)
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /wd4275")
-  endif()
 else()
   add_definitions(-DGTEST_CREATE_SHARED_LIBRARY=0)
 endif()

modules/ts/include/opencv2/ts/ts.hpp

@@ -19,8 +19,8 @@
 
 #include <stdarg.h> // for va_list
 
-#if defined _MSC_VER && _MSC_VER >= 1200
-#pragma warning( disable: 4251 4275 4355 4127 )
+#ifdef _MSC_VER
+#pragma warning( disable: 4127 )
 #endif
 
 #define GTEST_DONT_DEFINE_FAIL      0

modules/ts/include/opencv2/ts/ts_gtest.h

@@ -16843,7 +16843,7 @@ class GTEST_API_ TestPartResultArray {
 };
 
 // This interface knows how to report a test part result.
-class TestPartResultReporterInterface {
+class GTEST_API_ TestPartResultReporterInterface {
  public:
   virtual ~TestPartResultReporterInterface() {}
 

modules/ts/src/precomp.hpp

@@ -1,7 +1,3 @@
-#if defined _MSC_VER && _MSC_VER >= 1200
-#pragma warning( disable: 4127 4251)
-#endif
-
 #include "opencv2/core/core_c.h"
 #include "opencv2/ts/ts.hpp"
 

modules/ts/src/ts_gtest.cpp

@@ -36,7 +36,11 @@
 
 // This line ensures that gtest.h can be compiled on its own, even
 // when it's fused.
-#include "opencv2/ts/ts.hpp"
+#include "precomp.hpp"
+
+#ifdef __GNUC__
+#  pragma GCC diagnostic ignored "-Wmissing-declarations"
+#endif
 
 // The following lines pull in the real gtest *.cc files.
 // Copyright 2005, Google Inc.

modules/ts/src/ts_perf.cpp

@@ -584,9 +584,17 @@ int64 TestBase::_calibrate()
     return (int64)compensation;
 }
 
+#ifdef _MSC_VER
+# pragma warning(push)
+# pragma warning(disable:4355)  // 'this' : used in base member initializer list
+#endif
 TestBase::TestBase(): declare(this)
 {
 }
+#ifdef _MSC_VER
+# pragma warning(pop)
+#endif
+
 
 void TestBase::declareArray(SizeVector& sizes, cv::InputOutputArray a, int wtype)
 {