Fix #138439: Eraser/stabilizer brush cursor drawing correction

Correct small Eraser/stabilizer brush cursor drawing issues introduced
by typos in 7d97ba4c5f.

Pull Request: https://projects.blender.org/blender/blender/pulls/138443

source/blender/editors/gpencil_legacy/annotate_paint.cc

@@ -1748,8 +1748,8 @@ static void annotation_draw_eraser(bContext * /*C*/,
     immUniform1f("udash_factor", 0.5f);
 
     imm_draw_circle_wire_2d(shdr_pos,
-                            xy.y,
                             xy.x,
+                            xy.y,
                             p->radius,
                             /* XXX Dashed shader gives bad results with sets of small segments
                              * currently, temp hack around the issue. :( */

source/blender/editors/sculpt_paint/paint_stroke.cc

@@ -161,7 +161,7 @@ static void paint_draw_smooth_cursor(bContext *C,
     immUniformColor4ubv(paint->paint_cursor_col);
 
     immBegin(GPU_PRIM_LINES, 2);
-    immVertex2iv(pos, xy);
+    immVertex2fv(pos, blender::float2(xy));
     immVertex2f(pos,
                 stroke->last_mouse_position[0] + region->winrct.xmin,
                 stroke->last_mouse_position[1] + region->winrct.ymin);