Dynamically allocate symbol table containers, so timing of clean up can be...

Dynamically allocate symbol table containers, so timing of clean up can be more easily controlled WRT memory pool cleanup.


git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@22681 e7fa87d3-cd2b-0410-9028-fcbf551c1848