Scripts shouldn't add a non-null check in dart2js for a nullable parameter (seeWebGl.texImage2D)

sdk/lib/web_gl/dart2js/web_gl_dart2js.dart

 /**
  * 3D programming in the browser.
  */
 library dart.dom.web_gl;
 
 import 'dart:collection';
 import 'dart:_internal';
 import 'dart:html';
 import 'dart:html_common';
 import 'dart:_native_typed_data';
@@ skipping 2753 matching lines @@
   @DocsEditable()
   void stencilOp(int fail, int zfail, int zpass) native;
 
   @DomName('WebGLRenderingContext.stencilOpSeparate')
   @DocsEditable()
   void stencilOpSeparate(int face, int fail, int zfail, int zpass) native;
 
   @DomName('WebGLRenderingContext.texImage2D')
   @DocsEditable()
   void texImage2D(int target, int level, int internalformat, int format_OR_width, int height_OR_type, border_OR_canvas_OR_image_OR_pixels_OR_video, [int format, int type, TypedData pixels]) {
-    if (pixels != null && type != null && format != null && (border_OR_canvas_OR_image_OR_pixels_OR_video is int)) {
+    if (type != null && format != null && (border_OR_canvas_OR_image_OR_pixels_OR_video is int)) {
       _texImage2D_1(target, level, internalformat, format_OR_width, height_OR_type, border_OR_canvas_OR_image_OR_pixels_OR_video, format, type, pixels);
       return;
     }
     if ((border_OR_canvas_OR_image_OR_pixels_OR_video is ImageData || border_OR_canvas_OR_image_OR_pixels_OR_video == null) && format == null && type == null && pixels == null) {
       var pixels_1 = convertDartToNative_ImageData(border_OR_canvas_OR_image_OR_pixels_OR_video);
       _texImage2D_2(target, level, internalformat, format_OR_width, height_OR_type, pixels_1);
       return;
     }
     if ((border_OR_canvas_OR_image_OR_pixels_OR_video is ImageElement) && format == null && type == null && pixels == null) {
       _texImage2D_3(target, level, internalformat, format_OR_width, height_OR_type, border_OR_canvas_OR_image_OR_pixels_OR_video);
@@ skipping 34 matching lines @@
   @DocsEditable()
   void texParameterf(int target, int pname, num param) native;
 
   @DomName('WebGLRenderingContext.texParameteri')
   @DocsEditable()
   void texParameteri(int target, int pname, int param) native;
 
   @DomName('WebGLRenderingContext.texSubImage2D')
   @DocsEditable()
   void texSubImage2D(int target, int level, int xoffset, int yoffset, int format_OR_width, int height_OR_type, canvas_OR_format_OR_image_OR_pixels_OR_video, [int type, TypedData pixels]) {
-    if (pixels != null && type != null && (canvas_OR_format_OR_image_OR_pixels_OR_video is int)) {
+    if (type != null && (canvas_OR_format_OR_image_OR_pixels_OR_video is int)) {
       _texSubImage2D_1(target, level, xoffset, yoffset, format_OR_width, height_OR_type, canvas_OR_format_OR_image_OR_pixels_OR_video, type, pixels);
       return;
     }
     if ((canvas_OR_format_OR_image_OR_pixels_OR_video is ImageData || canvas_OR_format_OR_image_OR_pixels_OR_video == null) && type == null && pixels == null) {
       var pixels_1 = convertDartToNative_ImageData(canvas_OR_format_OR_image_OR_pixels_OR_video);
       _texSubImage2D_2(target, level, xoffset, yoffset, format_OR_width, height_OR_type, pixels_1);
       return;
     }
     if ((canvas_OR_format_OR_image_OR_pixels_OR_video is ImageElement) && type == null && pixels == null) {
       _texSubImage2D_3(target, level, xoffset, yoffset, format_OR_width, height_OR_type, canvas_OR_format_OR_image_OR_pixels_OR_video);
@@ skipping 2047 matching lines @@
 
   @DomName('WebGL2RenderingContext.texStorage3D')
   @DocsEditable()
   @Experimental() // untriaged
   void texStorage3D(int target, int levels, int internalformat, int width, int height, int depth) native;
 
   @DomName('WebGL2RenderingContext.texSubImage3D')
   @DocsEditable()
   @Experimental() // untriaged
   void texSubImage3D(int target, int level, int xoffset, int yoffset, int zoffset, int format_OR_width, int height_OR_type, canvas_OR_data_OR_depth_OR_image_OR_video, [int format, int type, TypedData pixels]) {
-    if (pixels != null && type != null && format != null && (canvas_OR_data_OR_depth_OR_image_OR_video is int)) {
+    if (type != null && format != null && (canvas_OR_data_OR_depth_OR_image_OR_video is int)) {
       _texSubImage3D_1(target, level, xoffset, yoffset, zoffset, format_OR_width, height_OR_type, canvas_OR_data_OR_depth_OR_image_OR_video, format, type, pixels);
       return;
     }
     if ((canvas_OR_data_OR_depth_OR_image_OR_video is ImageData || canvas_OR_data_OR_depth_OR_image_OR_video == null) && format == null && type == null && pixels == null) {
       var data_1 = convertDartToNative_ImageData(canvas_OR_data_OR_depth_OR_image_OR_video);
       _texSubImage3D_2(target, level, xoffset, yoffset, zoffset, format_OR_width, height_OR_type, data_1);
       return;
     }
     if ((canvas_OR_data_OR_depth_OR_image_OR_video is ImageElement || canvas_OR_data_OR_depth_OR_image_OR_video == null) && format == null && type == null && pixels == null) {
       _texSubImage3D_3(target, level, xoffset, yoffset, zoffset, format_OR_width, height_OR_type, canvas_OR_data_OR_depth_OR_image_OR_video);
@@ skipping 685 matching lines @@
 
   @DomName('WebGL2RenderingContext.stencilOpSeparate')
   @DocsEditable()
   @Experimental() // untriaged
   void stencilOpSeparate(int face, int fail, int zfail, int zpass) native;
 
   @DomName('WebGL2RenderingContext.texImage2D')
   @DocsEditable()
   @Experimental() // untriaged
   void texImage2D(int target, int level, int internalformat, int format_OR_width, int height_OR_type, border_OR_canvas_OR_image_OR_pixels_OR_video, [int format, int type, TypedData pixels]) {
-    if (pixels != null && type != null && format != null && (border_OR_canvas_OR_image_OR_pixels_OR_video is int)) {
+    if (type != null && format != null && (border_OR_canvas_OR_image_OR_pixels_OR_video is int)) {
       _texImage2D_1(target, level, internalformat, format_OR_width, height_OR_type, border_OR_canvas_OR_image_OR_pixels_OR_video, format, type, pixels);
       return;
     }
     if ((border_OR_canvas_OR_image_OR_pixels_OR_video is ImageData || border_OR_canvas_OR_image_OR_pixels_OR_video == null) && format == null && type == null && pixels == null) {
       var pixels_1 = convertDartToNative_ImageData(border_OR_canvas_OR_image_OR_pixels_OR_video);
       _texImage2D_2(target, level, internalformat, format_OR_width, height_OR_type, pixels_1);
       return;
     }
     if ((border_OR_canvas_OR_image_OR_pixels_OR_video is ImageElement) && format == null && type == null && pixels == null) {
       _texImage2D_3(target, level, internalformat, format_OR_width, height_OR_type, border_OR_canvas_OR_image_OR_pixels_OR_video);
@@ skipping 42 matching lines @@
 
   @DomName('WebGL2RenderingContext.texParameteri')
   @DocsEditable()
   @Experimental() // untriaged
   void texParameteri(int target, int pname, int param) native;
 
   @DomName('WebGL2RenderingContext.texSubImage2D')
   @DocsEditable()
   @Experimental() // untriaged
   void texSubImage2D(int target, int level, int xoffset, int yoffset, int format_OR_width, int height_OR_type, canvas_OR_format_OR_image_OR_pixels_OR_video, [int type, TypedData pixels]) {
-    if (pixels != null && type != null && (canvas_OR_format_OR_image_OR_pixels_OR_video is int)) {
+    if (type != null && (canvas_OR_format_OR_image_OR_pixels_OR_video is int)) {
       _texSubImage2D_1(target, level, xoffset, yoffset, format_OR_width, height_OR_type, canvas_OR_format_OR_image_OR_pixels_OR_video, type, pixels);
       return;
     }
     if ((canvas_OR_format_OR_image_OR_pixels_OR_video is ImageData || canvas_OR_format_OR_image_OR_pixels_OR_video == null) && type == null && pixels == null) {
       var pixels_1 = convertDartToNative_ImageData(canvas_OR_format_OR_image_OR_pixels_OR_video);
       _texSubImage2D_2(target, level, xoffset, yoffset, format_OR_width, height_OR_type, pixels_1);
       return;
     }
     if ((canvas_OR_format_OR_image_OR_pixels_OR_video is ImageElement) && type == null && pixels == null) {
       _texSubImage2D_3(target, level, xoffset, yoffset, format_OR_width, height_OR_type, canvas_OR_format_OR_image_OR_pixels_OR_video);
@@ skipping 336 matching lines @@
 // BSD-style license that can be found in the LICENSE file.
 
 
 @DocsEditable()
 @DomName('WebGLRenderingContextBase')
 @Experimental() // untriaged
 abstract class _WebGLRenderingContextBase extends Interceptor {
   // To suppress missing implicit constructor warnings.
   factory _WebGLRenderingContextBase._() { throw new UnsupportedError("Not supported"); }
 }