Regen dart:html from IDL with fixes

tools/dom/src/WebGLConstants.dart

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 part of dom.web_gl;
 
 const int ACTIVE_ATTRIBUTES = RenderingContext.ACTIVE_ATTRIBUTES;
 const int ACTIVE_TEXTURE = RenderingContext.ACTIVE_TEXTURE;
 const int ACTIVE_UNIFORMS = RenderingContext.ACTIVE_UNIFORMS;
 const int ALIASED_LINE_WIDTH_RANGE = RenderingContext.ALIASED_LINE_WIDTH_RANGE;
@@ skipping 85 matching lines @@
 const int FRONT = RenderingContext.FRONT;
 const int FRONT_AND_BACK = RenderingContext.FRONT_AND_BACK;
 const int FRONT_FACE = RenderingContext.FRONT_FACE;
 const int FUNC_ADD = RenderingContext.FUNC_ADD;
 const int FUNC_REVERSE_SUBTRACT = RenderingContext.FUNC_REVERSE_SUBTRACT;
 const int FUNC_SUBTRACT = RenderingContext.FUNC_SUBTRACT;
 const int GENERATE_MIPMAP_HINT = RenderingContext.GENERATE_MIPMAP_HINT;
 const int GEQUAL = RenderingContext.GEQUAL;
 const int GREATER = RenderingContext.GREATER;
 const int GREEN_BITS = RenderingContext.GREEN_BITS;
-const int HALF_FLOAT_OES = RenderingContext.HALF_FLOAT_OES;
+const int HALF_FLOAT_OES = OesTextureHalfFloat.HALF_FLOAT_OES;
 const int HIGH_FLOAT = RenderingContext.HIGH_FLOAT;
 const int HIGH_INT = RenderingContext.HIGH_INT;
 const int INCR = RenderingContext.INCR;
 const int INCR_WRAP = RenderingContext.INCR_WRAP;
 const int INT = RenderingContext.INT;
 const int INT_VEC2 = RenderingContext.INT_VEC2;
 const int INT_VEC3 = RenderingContext.INT_VEC3;
 const int INT_VEC4 = RenderingContext.INT_VEC4;
 const int INVALID_ENUM = RenderingContext.INVALID_ENUM;
 const int INVALID_FRAMEBUFFER_OPERATION = RenderingContext.INVALID_FRAMEBUFFER_OPERATION;
@@ skipping 176 matching lines @@
 const int VERTEX_ATTRIB_ARRAY_BUFFER_BINDING = RenderingContext.VERTEX_ATTRIB_ARRAY_BUFFER_BINDING;
 const int VERTEX_ATTRIB_ARRAY_ENABLED = RenderingContext.VERTEX_ATTRIB_ARRAY_ENABLED;
 const int VERTEX_ATTRIB_ARRAY_NORMALIZED = RenderingContext.VERTEX_ATTRIB_ARRAY_NORMALIZED;
 const int VERTEX_ATTRIB_ARRAY_POINTER = RenderingContext.VERTEX_ATTRIB_ARRAY_POINTER;
 const int VERTEX_ATTRIB_ARRAY_SIZE = RenderingContext.VERTEX_ATTRIB_ARRAY_SIZE;
 const int VERTEX_ATTRIB_ARRAY_STRIDE = RenderingContext.VERTEX_ATTRIB_ARRAY_STRIDE;
 const int VERTEX_ATTRIB_ARRAY_TYPE = RenderingContext.VERTEX_ATTRIB_ARRAY_TYPE;
 const int VERTEX_SHADER = RenderingContext.VERTEX_SHADER;
 const int VIEWPORT = RenderingContext.VIEWPORT;
 const int ZERO = RenderingContext.ZERO;