Add Support for WebGL Transormfeedback

Reference: https://www.khronos.org/registry/webgl/specs/latest/2.0/#3.7.15

tests/wpt/webgl/meta/conformance2/buffers/get-buffer-sub-data-validity.html.ini

@@ -1,2 +1,50 @@
 [get-buffer-sub-data-validity.html]
   expected: ERROR
+  [WebGL test #9: areArraysEqual(dest, srcData) should be true. Was false.]
+    expected: FAIL
+
+  [Overall test]
+    expected: NOTRUN
+
+  [WebGL test #7: areArraysEqual(dest, srcData) should be true. Was false.]
+    expected: FAIL
+
+  [WebGL test #6: getError expected: NO_ERROR. Was INVALID_VALUE : after evaluating: gl.getBufferSubData(gl.COPY_WRITE_BUFFER, 0, dest)]
+    expected: FAIL
+
+  [WebGL test #2: getError expected: NO_ERROR. Was INVALID_VALUE : after evaluating: gl.getBufferSubData(gl.COPY_WRITE_BUFFER, 0, dest)]
+    expected: FAIL
+
+  [WebGL test #12: getError expected: NO_ERROR. Was INVALID_VALUE : after evaluating: gl.getBufferSubData(gl.COPY_WRITE_BUFFER, 0, dest)]
+    expected: FAIL
+
+  [WebGL test #10: getError expected: NO_ERROR. Was INVALID_VALUE : after evaluating: gl.getBufferSubData(gl.COPY_WRITE_BUFFER, 0, dest)]
+    expected: FAIL
+
+  [WebGL test #14: getError expected: NO_ERROR. Was INVALID_VALUE : after evaluating: gl.getBufferSubData(gl.COPY_WRITE_BUFFER, 0, dest)]
+    expected: FAIL
+
+  [WebGL test #4: getError expected: NO_ERROR. Was INVALID_VALUE : after evaluating: gl.getBufferSubData(gl.COPY_WRITE_BUFFER, 0, dest)]
+    expected: FAIL
+
+  [WebGL test #13: areArraysEqual(dest, srcData) should be true. Was false.]
+    expected: FAIL
+
+  [WebGL test #15: areArraysEqual(dest, srcData) should be true. Was false.]
+    expected: FAIL
+
+  [WebGL test #8: getError expected: NO_ERROR. Was INVALID_VALUE : after evaluating: gl.getBufferSubData(gl.COPY_WRITE_BUFFER, 0, dest)]
+    expected: FAIL
+
+  [WebGL test #5: areArraysEqual(dest, srcData) should be true. Was false.]
+    expected: FAIL
+
+  [WebGL test #0: getError expected: NO_ERROR. Was INVALID_ENUM : linking transform feedback shader should not set an error]
+    expected: FAIL
+
+  [WebGL test #3: areArraysEqual(dest, srcData) should be true. Was false.]
+    expected: FAIL
+
+  [WebGL test #11: areArraysEqual(dest, srcData) should be true. Was false.]
+    expected: FAIL
+

tests/wpt/webgl/meta/conformance2/context/methods-2.html.ini

@@ -191,3 +191,42 @@
   [WebGL test #42: Property either does not exist or is not a function: deleteTransformFeedback]
     expected: FAIL
 
+  [WebGL test #41: Property either does not exist or is not a function: bindBufferBase]
+    expected: FAIL
+
+  [WebGL test #51: Property either does not exist or is not a function: deleteVertexArray]
+    expected: FAIL
+
+  [WebGL test #50: Property either does not exist or is not a function: createVertexArray]
+    expected: FAIL
+
+  [WebGL test #42: Property either does not exist or is not a function: bindBufferRange]
+    expected: FAIL
+
+  [WebGL test #53: Property either does not exist or is not a function: bindVertexArray]
+    expected: FAIL
+
+  [WebGL test #48: Property either does not exist or is not a function: getActiveUniformBlockName]
+    expected: FAIL
+
+  [WebGL test #52: Property either does not exist or is not a function: isVertexArray]
+    expected: FAIL
+
+  [WebGL test #46: Property either does not exist or is not a function: getUniformBlockIndex]
+    expected: FAIL
+
+  [WebGL test #49: Property either does not exist or is not a function: uniformBlockBinding]
+    expected: FAIL
+
+  [WebGL test #44: Property either does not exist or is not a function: getUniformIndices]
+    expected: FAIL
+
+  [WebGL test #47: Property either does not exist or is not a function: getActiveUniformBlockParameter]
+    expected: FAIL
+
+  [WebGL test #43: Property either does not exist or is not a function: getIndexedParameter]
+    expected: FAIL
+
+  [WebGL test #45: Property either does not exist or is not a function: getActiveUniforms]
+    expected: FAIL
+

tests/wpt/webgl/meta/conformance2/misc/expando-loss-2.html.ini

@@ -3,3 +3,6 @@
   [WebGL test #5: successfullyParsed should be true (of type boolean). Was undefined (of type undefined).]
     expected: FAIL
 
+  [WebGL test #10: successfullyParsed should be true (of type boolean). Was undefined (of type undefined).]
+    expected: FAIL
+

tests/wpt/webgl/meta/conformance2/state/gl-object-get-calls.html.ini

@@ -105,6 +105,18 @@
   [WebGL test #106: getFramebufferAttachmentParameter did not generate INVALID_ENUM for invalid attachment enum: NO_ERROR]
     expected: FAIL
 
-  [WebGL test #121: successfullyParsed should be true (of type boolean). Was undefined (of type undefined).]
+  [WebGL test #131: gl.getRenderbufferParameter(gl.RENDERBUFFER, gl.RENDERBUFFER_DEPTH_SIZE) should be non-zero. Was 0]
+    expected: FAIL
+
+  [WebGL test #128: gl.getRenderbufferParameter(gl.RENDERBUFFER, gl.RENDERBUFFER_WIDTH) should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #129: gl.getRenderbufferParameter(gl.RENDERBUFFER, gl.RENDERBUFFER_HEIGHT) should be 2. Was 0.]
+    expected: FAIL
+
+  [WebGL test #123: gl.getProgramParameter(uniformBlockProgram, gl.ACTIVE_UNIFORM_BLOCKS) should be 1 (of type number). Was null (of type object).]
+    expected: FAIL
+
+  [WebGL test #138: successfullyParsed should be true (of type boolean). Was undefined (of type undefined).]
     expected: FAIL
 

tests/wpt/webgl/meta/conformance2/transform_feedback/non-existent-varying.html.ini

@@ -1,5 +0,0 @@
-[non-existent-varying.html]
-  expected: ERROR
-  [WebGL test #0: successfullyParsed should be true (of type boolean). Was undefined (of type undefined).]
-    expected: FAIL
-

tests/wpt/webgl/meta/conformance2/transform_feedback/unwritten-output-defaults-to-zero.html.ini

@@ -9,3 +9,6 @@
   [WebGL test #1: successfullyParsed should be true (of type boolean). Was undefined (of type undefined).]
     expected: FAIL
 
+  [WebGL test #2: successfullyParsed should be true (of type boolean). Was undefined (of type undefined).]
+    expected: FAIL
+