Fix clang warnings / move some plat code into poly.

src/xenia/assert.h

@@ -52,6 +52,7 @@
 #define XEASSERTNOTZERO(expr)           XEASSERTCORE( (expr) != 0    )
 #define XEASSERTNULL(expr)              XEASSERTCORE( (expr) == NULL )
 #define XEASSERTNOTNULL(expr)           XEASSERTCORE( (expr) != NULL )
+#define XEASSERTUNHANDLEDCASE(var)      XEASSERTALWAYS()
 
 
 #if XE_COMPILER_MSVC

src/xenia/kernel/xboxkrnl_modules.cc

@@ -43,7 +43,7 @@ X_STATUS xeExGetXConfigSetting(
       value = 0x00001000; // USA/Canada
       break;
     default:
-      XEASSERTALWAYS();
+      XEASSERTUNHANDLEDCASE(setting);
       return X_STATUS_INVALID_PARAMETER_2;
     }
     break;
@@ -80,12 +80,12 @@ X_STATUS xeExGetXConfigSetting(
       value = 0;
       break;
     default:
-      XEASSERTALWAYS();
+      XEASSERTUNHANDLEDCASE(setting);
       return X_STATUS_INVALID_PARAMETER_2;
     }
     break;
   default:
-    XEASSERTALWAYS();
+    XEASSERTUNHANDLEDCASE(category);
     return X_STATUS_INVALID_PARAMETER_1;
   }