Verifies that the get method, and the set method for individual elements, on the WebGLArray types no longer exist.

On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".

Regression test for https://bugs.webkit.org/show_bug.cgi?id=38039
PASS webGLArray.get is undefined.
PASS webGLArray.set(0, 1) threw exception.
PASS webGLArray.get is undefined.
PASS webGLArray.set(0, 1) threw exception.
PASS webGLArray.get is undefined.
PASS webGLArray.set(0, 1) threw exception.
PASS webGLArray.get is undefined.
PASS webGLArray.set(0, 1) threw exception.
PASS webGLArray.get is undefined.
PASS webGLArray.set(0, 1) threw exception.
PASS webGLArray.get is undefined.
PASS webGLArray.set(0, 1) threw exception.
PASS webGLArray.get is undefined.
PASS webGLArray.set(0, 1) threw exception.
PASS successfullyParsed is true

TEST COMPLETE