glsl2: Add and use new variable mode ir_var_temporary

This is quite a large patch because breaking it into smaller pieces
would result in the tree being intermitently broken.  The big changes
are:

    * Add the ir_var_temporary variable mode

    * Change the ir_variable constructor to take the mode as a
      parameter and correctly specify the mode for all ir_varables.

    * Change the linker to not cross validate ir_var_temporary
      variables.

    * Change the linker to pull all ir_var_temporary variables from
      global scope into 'main'.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/mesa/shader/ir_to_mesa.cpp b/src/mesa/shader/ir_to_mesa.cpp
index 352b496625..7cc469f3a7 100644
--- a/src/mesa/shader/ir_to_mesa.cpp
+++ b/src/mesa/shader/ir_to_mesa.cpp
@@ -1133,6 +1133,7 @@ ir_to_mesa_visitor::visit(ir_dereference_variable *ir)
 
 	 break;
       case ir_var_auto:
+      case ir_var_temporary:
 	 entry = new(mem_ctx) variable_storage(ir->var, PROGRAM_TEMPORARY,
 					       this->next_temp);
 	 this->variables.push_tail(entry);