Error Handling: turned IsItemHovered()/IsWindowHovered() checks into IM_ASSERT_USER_ERROR. (#1651)

docs/CHANGELOG.txt

@@ -61,6 +61,7 @@ Other changes:
   ImGui_ImplXXXX_RenderDrawData() of standard backend to expose selected render
   state to draw callbacks. (#6969, #5834, #7468, #3590)
 - IO: WantCaptureKeyboard is never set when ImGuiConfigFlags_NoKeyboard is enabled. (#4921)
+- Error Handling: turned a few more functions into recoverable errors. (#1651)
 - DrawList: AddCallback() added an optional size parameter allowing to copy and
   store any amount of user data for usage by callbacks: (#6969, #4770, #7665)
   - If userdata_size == 0: we copy/store the 'userdata' argument as-is (existing behavior).

imgui.cpp

@@ -4433,7 +4433,7 @@ bool ImGui::IsItemHovered(ImGuiHoveredFlags flags)
 {
     ImGuiContext& g = *GImGui;
     ImGuiWindow* window = g.CurrentWindow;
-    IM_ASSERT((flags & ~ImGuiHoveredFlags_AllowedMaskForIsItemHovered) == 0 && "Invalid flags for IsItemHovered()!");
+    IM_ASSERT_USER_ERROR((flags & ~ImGuiHoveredFlags_AllowedMaskForIsItemHovered) == 0, "Invalid flags for IsItemHovered()!");
 
     if (g.NavDisableMouseHover && !g.NavDisableHighlight && !(flags & ImGuiHoveredFlags_NoNavOverride))
     {
@@ -4455,8 +4455,6 @@ bool ImGui::IsItemHovered(ImGuiHoveredFlags flags)
         if (flags & ImGuiHoveredFlags_ForTooltip)
             flags = ApplyHoverFlagsForTooltip(flags, g.Style.HoverFlagsForTooltipMouse);
 
-        IM_ASSERT((flags & (ImGuiHoveredFlags_AnyWindow | ImGuiHoveredFlags_RootWindow | ImGuiHoveredFlags_ChildWindows | ImGuiHoveredFlags_NoPopupHierarchy)) == 0);   // Flags not supported by this function
-
         // Done with rectangle culling so we can perform heavier checks now
         // Test if we are hovering the right window (our window could be behind another window)
         // [2021/03/02] Reworked / reverted the revert, finally. Note we want e.g. BeginGroup/ItemAdd/EndGroup to work as well. (#3851)
@@ -8143,9 +8141,9 @@ bool ImGui::IsWindowAbove(ImGuiWindow* potential_above, ImGuiWindow* potential_b
 // Refer to FAQ entry "How can I tell whether to dispatch mouse/keyboard to Dear ImGui or my application?" for details.
 bool ImGui::IsWindowHovered(ImGuiHoveredFlags flags)
 {
-    IM_ASSERT((flags & ~ImGuiHoveredFlags_AllowedMaskForIsWindowHovered) == 0 && "Invalid flags for IsWindowHovered()!");
-
     ImGuiContext& g = *GImGui;
+    IM_ASSERT_USER_ERROR((flags & ~ImGuiHoveredFlags_AllowedMaskForIsWindowHovered) == 0, "Invalid flags for IsWindowHovered()!");
+
     ImGuiWindow* ref_window = g.HoveredWindow;
     ImGuiWindow* cur_window = g.CurrentWindow;
     if (ref_window == NULL)