[core] fix mixed sdf + non-sdf icon rendering in one layer (#15456)

* [core] fix icon symbol rendring when sdf and non-sdf icon in the same symbol layer

* fix build error

* fix typo

* revert renderableSegment change

* simplify codes

* fix build error

* refine sdf icon flag

* [core] fix mixed sdf + non-sdf icon rendering in one layer

* remove iconstatus getter in stymbol bucket

* fix review findings

* provide bitwise operator for SymbolContent enum

* use MBGL_MBGL_CONSTEXPR

* add one missing update for sdfIcon

* make renderer symbol type as enum

1 files changed, 2 insertions, 2 deletions

diff --git a/src/mbgl/layout/symbol_layout.hpp b/src/mbgl/layout/symbol_layout.hpp
index 6cc21c6d91..8d4c51148a 100644
--- a/src/mbgl/layout/symbol_layout.hpp
+++ b/src/mbgl/layout/symbol_layout.hpp
@@ -53,7 +53,8 @@ private:
                     const ShapedTextOrientations& shapedTextOrientations,
                     optional<PositionedIcon> shapedIcon,
                     const GlyphPositions&,
-                    Point<float> textOffset);
+                    Point<float> textOffset,
+                    const SymbolContent iconType);
 
     bool anchorIsTooClose(const std::u16string& text, const float repeatDistance, const Anchor&);
     std::map<std::u16string, std::vector<Anchor>> compareText;
@@ -93,7 +94,6 @@ private:
     const uint32_t tileSize;
     const float tilePixelRatio;
 
-    bool sdfIcons = false;
     bool iconsNeedLinear = false;
     bool sortFeaturesByY = false;
     bool allowVerticalPlacement = false;