There were lot of styling issues in ParseContext.cpp, mostly related to
opening braces on same line as conditional statement and pointers and
references not being tight to the variable in variable declarations,
this change fixes them.

TEST=angle_unittests

Change-Id: Ia225726254bcf5f315c13054ff41c5ff9cfe0992
Reviewed-on: https://chromium-review.googlesource.com/272846Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Olli Etuaho <oetuaho@nvidia.com>
Tested-by: Olli Etuaho <oetuaho@nvidia.com>