integral perf tests renamed for readability

modules/imgproc/perf/perf_integral.cpp

@@ -10,7 +10,7 @@ typedef perf::TestBaseWithParam<Size_MatType_OutMatDepth_t> Size_MatType_OutMatD
 /*
 // void integral(InputArray image, OutputArray sum, int sdepth=-1 )
 */
-PERF_TEST_P( Size_MatType_OutMatDepth, integral1, 
+PERF_TEST_P( Size_MatType_OutMatDepth, integral,
     testing::Combine(
         testing::Values( TYPICAL_MAT_SIZES ), 
         testing::Values( CV_8UC1, CV_8UC4 ),
@@ -37,7 +37,7 @@ PERF_TEST_P( Size_MatType_OutMatDepth, integral1,
 /*
 // void integral(InputArray image, OutputArray sum, OutputArray sqsum, int sdepth=-1 )
 */
-PERF_TEST_P( Size_MatType_OutMatDepth, integral2, 
+PERF_TEST_P( Size_MatType_OutMatDepth, integral_sqsum,
     testing::Combine(
         testing::Values( TYPICAL_MAT_SIZES ), 
         testing::Values( CV_8UC1, CV_8UC4 ),
@@ -66,7 +66,7 @@ PERF_TEST_P( Size_MatType_OutMatDepth, integral2,
 /*
 // void integral(InputArray image, OutputArray sum, OutputArray sqsum, OutputArray tilted, int sdepth=-1 )
 */
-PERF_TEST_P( Size_MatType_OutMatDepth, integral3, 
+PERF_TEST_P( Size_MatType_OutMatDepth, integral3_sqsum_tilted,
     testing::Combine(
         testing::Values( TYPICAL_MAT_SIZES ), 
         testing::Values( CV_8UC1, CV_8UC4 ),