glslang parser: Fix crash for ES shader with a uniform block with an unsized array that is later accessed. David Neto (dneto@google.com).

Instead of crashing, exit early from the implicit-sized-array-size-update routine so we can get to a real error message which is emitted later.


git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@31109 e7fa87d3-cd2b-0410-9028-fcbf551c1848