This makes the WebGL2 implementation file inherit from the WebGL1
implementation file. This is actually closer to what the IDL files
describe and allows us to not have to maintain two copies of the same
functions.
This is more like what the IDL files specify with two different mixins,
but the inheritance structure here is slightly different for easier
maintenance. This will also allow the WebGL2 Impl to inherit from the
WebGL1 Impl as WebGL versions don't share the functions defined in the
Overloads interfaces.
Use `Float32Array or sequence<GLfloat>` instead of
`BufferSource or sequence<GLfloat>`. This meaningfully changes behavior
for `Float16Array` and `Float64Array`: they are now converted to
`sequence<GLfloat>` by iterating the typed array, rather than being
treated as a `BufferSource`. As a result, many WebGL calls now work
correctly where we previously crashed in `VERIFY_NOT_REACHED()` due to
the assumption that a `BufferSource` was always a `Float32Array`.
Fixes https://github.com/LadybirdBrowser/ladybird/issues/5962
This copies the latest generated code in tree and then removes code
generation for the WebGL rendering contexts. This is because it didn't
add much value, and we can maintain the generated output instead of
both that and the generator itself.
