mutable_dispatch & negative command_buffer tests: fix Skip logic

If mutable_dispatch extension is supported, the mutable handle
is allowed to be not null. In that case, skip the HandleNotNull
negative tests.

Author: franz

test_conformance/extensions/cl_khr_command_buffer/negative_command_buffer_barrier.cpp

@@ -92,6 +92,13 @@ struct CommandBufferBarrierMutableHandleNotNull : public BasicCommandBufferTest
 {
     using BasicCommandBufferTest::BasicCommandBufferTest;
 
+    bool Skip() override
+    {
+        if (BasicCommandBufferTest::Skip()) return true;
+        return is_extension_available(device,
+                                      "cl_khr_command_buffer_mutable_dispatch");
+    }
+
     cl_int Run() override
     {
         cl_mutable_command_khr mutable_handle;

test_conformance/extensions/cl_khr_command_buffer/negative_command_buffer_copy_image.cpp

@@ -357,6 +357,13 @@ struct CommandBufferCopyImageMutableHandleNotNull : public CommandCopyBaseTest
 {
     using CommandCopyBaseTest::CommandCopyBaseTest;
 
+    bool Skip() override
+    {
+        if (CommandCopyBaseTest::Skip()) return true;
+        return is_extension_available(device,
+                                      "cl_khr_command_buffer_mutable_dispatch");
+    }
+
     cl_int Run() override
     {
         cl_mutable_command_khr mutable_handle;

test_conformance/extensions/cl_khr_command_buffer/negative_command_buffer_fill.cpp

@@ -416,6 +416,13 @@ struct CommandBufferCommandFillBufferMutableHandleNotNull
 {
     using CommandFillBaseTest::CommandFillBaseTest;
 
+    bool Skip() override
+    {
+        if (CommandFillBaseTest::Skip()) return true;
+        return is_extension_available(device,
+                                      "cl_khr_command_buffer_mutable_dispatch");
+    }
+
     cl_int Run() override
     {
         cl_mutable_command_khr mutable_handle;
@@ -440,6 +447,13 @@ struct CommandBufferCommandFillImageMutableHandleNotNull
 {
     using CommandFillBaseTest::CommandFillBaseTest;
 
+    bool Skip() override
+    {
+        if (CommandFillBaseTest::Skip()) return true;
+        return is_extension_available(device,
+                                      "cl_khr_command_buffer_mutable_dispatch");
+    }
+
     cl_int Run() override
     {
         cl_mutable_command_khr mutable_handle;

test_conformance/extensions/cl_khr_command_buffer/negative_command_buffer_svm_mem.cpp

@@ -207,6 +207,14 @@ struct CommandBufferCommandSVMMutableHandleNotNull
 {
     using BasicSVMCommandBufferTest::BasicSVMCommandBufferTest;
 
+    bool Skip() override
+    {
+        if (BasicSVMCommandBufferTest::Skip()) return true;
+        return is_extension_available(device,
+                                      "cl_khr_command_buffer_mutable_dispatch");
+    }
+
+
     cl_int Run() override
     {
         cl_mutable_command_khr mutable_handle;