Revised text size for lakes

This branch supersedes branch
https://github.com/Ircama/openstreetmap-carto/tree/topo-extension-zooms
specifically for the text size to be used for lakes (natural=water or landuse=reservoir/basin).

Related PR will replace
gravitystorm#2139
for the feature "Revised text size for lakes".

water.mss

@@ -284,14 +284,34 @@
   [feature = 'landuse_basin'] {
     [zoom >= 10][way_pixels > 3000],
     [zoom >= 17] {
-      text-name: "[name]";
-      text-size: 12;
-      text-fill: @water-text;
-      text-face-name: @oblique-fonts;
-      text-halo-radius: 1;
-      text-halo-fill: rgba(255,255,255,0.6);
-      text-wrap-width: @standard-wrap-width;
-      text-placement: interior;
+      water/text-name: "[name]";
+      water/text-size: 10;
+      [way_pixels >= 4000] {
+        water/text-size: 12;
+      }
+      [way_pixels >= 20000][zoom >= 10] {
+        water/text-size: 15;
+      }
+      [way_pixels >= 60000][zoom >= 11] {
+        water/text-size: 17;
+      }
+      [way_pixels >= 200000][zoom >= 12] {
+        water/text-size: 21;
+      }
+      [way_pixels >= 500000][zoom >= 13] {
+        water/text-size: 25;
+      }
+      [way_pixels >= 500000][zoom >= 15] {
+        water/text-size: 27;
+      }
+      water/text-fill: @water-text;
+      water/text-face-name: @oblique-fonts;
+      water/text-halo-radius: 1;
+      water/text-halo-fill: rgba(255,255,255,0.6);
+      water/text-wrap-width: @standard-wrap-width;
+      water/text-placement: interior;
+      water/text-placement-type: simple;
+      water/text-placements: "N,S,E,W,NE,SE,NW,SW,18,16,14,12,10,9,8";
     }
   }
 }