tests: layer init moved to instance create - drop from device
diff --git a/tests/layer_validation_tests.cpp b/tests/layer_validation_tests.cpp
index 8d62a93..f58d5e1 100644
--- a/tests/layer_validation_tests.cpp
+++ b/tests/layer_validation_tests.cpp
@@ -66,12 +66,12 @@
         ErrorMonitor               *m_errorMonitor;
 
     virtual void SetUp() {
-        const char *layer_names[] = {"MemTracker", "ObjectTracker"};
-        const std::vector<const char *> layers(layer_names, layer_names + 2);
+        const char *extension_names[] = {"MemTracker", "ObjectTracker"};
+        const std::vector<const char *> extensions(extension_names, extension_names + 2);
 
         size_t extSize = sizeof(uint32_t);
         uint32_t extCount = 0;
-        VkResult err;
+        VkResult U_ASSERT_ONLY err;
         err = vkGetGlobalExtensionInfo(VK_EXTENSION_INFO_TYPE_COUNT, 0, &extSize, &extCount);
         assert(!err);
 
@@ -79,16 +79,17 @@
         extSize = sizeof(VkExtensionProperties);
         bool32_t extFound;
 
-        for (uint32_t i = 0; i < layers.size(); i++) {
+        for (uint32_t i = 0; i < extensions.size(); i++) {
             extFound = 0;
             for (uint32_t j = 0; j < extCount; j++) {
                 err = vkGetGlobalExtensionInfo(VK_EXTENSION_INFO_TYPE_PROPERTIES, j, &extSize, &extProp);
-                if (!strcmp(layers[i], extProp.extName)) {
+                assert(!err);
+                if (!strcmp(extensions[i], extProp.extName)) {
                    extFound = 1;
                    break;
                 }
             }
-            ASSERT_EQ(extFound, 1) << "ERROR: Cannot find extension named " << layers[i] << " which is necessary to pass this test";
+            ASSERT_EQ(extFound, 1) << "ERROR: Cannot find extension named " << extensions[i] << " which is necessary to pass this test";
         }
 
         this->app_info.sType = VK_STRUCTURE_TYPE_APPLICATION_INFO;
@@ -99,7 +100,7 @@
         this->app_info.engineVersion = 1;
         this->app_info.apiVersion = VK_API_VERSION;
 
-        InitFramework(layers);
+        InitFramework(extensions);
         m_errorMonitor = new ErrorMonitor(inst);
     }