microsoft/compiler: Strip array index when querying LOD in integer sampler lowering
Fixes: arb_stencil_texturing-blit_corrupts_state GL_TEXTURE_1D_ARRAY arb_stencil_texturing-blit_corrupts_state GL_TEXTURE_2D_ARRAY
Closes #42
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Fixes: arb_stencil_texturing-blit_corrupts_state GL_TEXTURE_1D_ARRAY arb_stencil_texturing-blit_corrupts_state GL_TEXTURE_2D_ARRAY
Closes #42