Put all glslang internals (but not the external interface) into the glslang namespace.

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@22882 e7fa87d3-cd2b-0410-9028-fcbf551c1848

glslang/MachineIndependent/PoolAlloc.cpp

@@ -38,6 +38,8 @@
 #include "Include/InitializeGlobals.h"
 #include "osinclude.h"
 
+namespace glslang {
+
 OS_TLSIndex PoolIndex;
 
 void InitializeGlobalPools()
@@ -333,3 +335,5 @@ void TAllocation::checkAllocList() const
     for (const TAllocation* alloc = this; alloc != 0; alloc = alloc->prevAlloc)
         alloc->check();
 }
+
+} // end namespace glslang