SPEC-2513 Fixes to enable w4701 (#1105)

* Some fixes

* more fixes

* fixes for debug

Code/Framework/AzCore/Tests/Jobs.cpp

@@ -395,7 +395,8 @@ namespace UnitTest
             }
             else
             {
-                int result1, result2;
+                int result1 = 0;
+                int result2 = 0;
                 Job* job1 = aznew FibonacciJob2(m_n - 1, &result1, m_context);
                 Job* job2 = aznew FibonacciJob2(m_n - 2, &result2, m_context);
                 StartAsChild(job1);

Code/Framework/AzFramework/Platform/Windows/AzFramework/Windowing/NativeWindow_Windows.cpp

@@ -353,6 +353,7 @@ namespace AzFramework
 
         // Get the dimensions of the display device on which the window is currently displayed.
         MONITORINFO monitorInfo;
+        memset(&monitorInfo, 0, sizeof(MONITORINFO)); // C4701 potentially uninitialized local variable 'monitorInfo' used
         monitorInfo.cbSize = sizeof(MONITORINFO);
         const BOOL success = monitor ? GetMonitorInfo(monitor, &monitorInfo) : FALSE;
         if (!success)