The patch for initializing output variables introduced a warning that
broke MSVS 2015 standalone build. The "shaderType" variable passed to
TCompiler::initializeOutputVariables was unnecessary and had the same
name as a member variable of TCompiler that stores the shader type.

TEST=MSVS 2015 build

Change-Id: I9e01f5eae77a88babde21d4864a02c8731a220de
Reviewed-on: https://chromium-review.googlesource.com/362550Reviewed-by: Olli Etuaho <oetuaho@nvidia.com>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>