compiler: Import Mesa compiler components

Merciliess removal of gl_context state
compiler: Bring glslang and LunarGLASS into CMake process
compiler: Progress (?) towards standalone xglCompiler
diff --git a/icd/intel/compiler/shader/linker.cpp b/icd/intel/compiler/shader/linker.cpp
index c448847..6f3b876 100644
--- a/icd/intel/compiler/shader/linker.cpp
+++ b/icd/intel/compiler/shader/linker.cpp
@@ -64,7 +64,7 @@
  * \author Ian Romanick <ian.d.romanick@intel.com>
  */
 
-#include "main/core.h"
+#include "libfns.h" // LunarG ADD:
 #include "glsl_symbol_table.h"
 #include "glsl_parser_extras.h"
 #include "ir.h"