Put each array declarator into a separate declaration in HLSL output Since HLSL doesn't support arrays as l-values, HLSL output needs to split declarators that initialize arrays to variable declaration and assignment implemented via a function call. To prepare for this, it is necessary that each declarator has its own declaration. BUG=angleproject:941 TEST=angle_end2end_tests, WebGL conformance tests Change-Id: I43dee487578561c01dbde90c2f55a93dda2f057a Reviewed-on: https://chromium-review.googlesource.com/266001 Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Zhenyao Mo <zmo@chromium.org> Tested-by: Olli Etuaho <oetuaho@nvidia.com>