GPU: Fix static compilation errors

- Missing explicit cast to `int` for bitwise operator.
- UBO struct member macro colision. Rename fixes it.

source/blender/draw/engines/overlay/shaders/overlay_edit_uv_edges_vert.glsl

@@ -11,9 +11,9 @@ void main()
                    half_pixel_offset;
 
 #ifdef USE_EDGE_SELECT
-  bool is_select = (flag & EDGE_UV_SELECT) != 0u;
+  bool is_select = (flag & int(EDGE_UV_SELECT)) != 0u;
 #else
-  bool is_select = (flag & VERT_UV_SELECT) != 0u;
+  bool is_select = (flag & int(VERT_UV_SELECT)) != 0u;
 #endif
   geom_in.selectionFac = is_select ? 1.0 : 0.0;
   /* Move selected edges to the top

source/blender/editors/interface/interface_draw.cc

@@ -1346,7 +1346,7 @@ void ui_draw_but_UNITVEC(uiBut *but,
 
   GPUBatch *sphere = GPU_batch_preset_sphere(2);
   SimpleLightingData simple_lighting_data;
-  copy_v4_fl4(simple_lighting_data.color, diffuse[0], diffuse[1], diffuse[2], 1.0f);
+  copy_v4_fl4(simple_lighting_data.l_color, diffuse[0], diffuse[1], diffuse[2], 1.0f);
   copy_v3_v3(simple_lighting_data.light, light);
   GPUUniformBuf *ubo = GPU_uniformbuf_create_ex(
       sizeof(SimpleLightingData), &simple_lighting_data, __func__);

source/blender/gpu/GPU_shader_shared.h

@@ -54,7 +54,7 @@ struct GPUClipPlanes {
 BLI_STATIC_ASSERT_ALIGN(struct GPUClipPlanes, 16)
 
 struct SimpleLightingData {
-  float4 color;
+  float4 l_color;
   float3 light;
   float _pad;
 };

source/blender/gpu/shaders/gpu_shader_simple_lighting_frag.glsl

@@ -1,6 +1,6 @@
 
 void main()
 {
-  fragColor = simple_lighting_data.color;
+  fragColor = simple_lighting_data.l_color;
   fragColor.xyz *= clamp(dot(normalize(normal), simple_lighting_data.light), 0.0, 1.0);
 }