Fix error reporting for lost contexts

src/common/version.h

 #define MAJOR_VERSION 1
 #define MINOR_VERSION 0
 #define BUILD_VERSION 0
-#define BUILD_REVISION 905
+#define BUILD_REVISION 906
 
 #define STRINGIFY(x) #x
 #define MACRO_STRINGIFY(x) STRINGIFY(x)

src/libGLESv2/libGLESv2.cpp

@@ -2707,10 +2707,7 @@ GLenum __stdcall glGetError(void)
 
     if (context)
     {
-        if (context->isContextLost())
-            return GL_OUT_OF_MEMORY;
-        else
-            return context->getError();
+        return context->getError();
     }
 
     return GL_NO_ERROR;

src/libGLESv2/main.cpp

@@ -98,9 +98,18 @@ Context *getNonLostContext()
 {
     Context *context = getContext();
     
-    if (context && !context->isContextLost())
-        return context;
-
+    if (context)
+    {
+        if (context->isContextLost())
+        {
+            error(GL_OUT_OF_MEMORY);
+            return NULL;
+        }
+        else
+        {
+            return context;
+        }
+    }
     return NULL;
 }