i965: Stop including brw_vs.h from brw_vec4.h.

This is backwards from what we are going to want in the long term, which is:

- brw_vec4.h declares general-purpose vec4 infrastructure needed by
  both VS and GS
- brw_vs.h includes brw_vec4.h and adds VS-specific parts.
- brw_gs.h includes brw_vec4.h and adds GS-specific parts.

Note that at the moment brw_vec.h contains a fair amount of
VS-specific declarations--I plan to address that in a later patch.

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>

src/mesa/drivers/dri/i965/brw_vec4.cpp

@@ -23,6 +23,7 @@
 
 #include "brw_vec4.h"
 #include "brw_cfg.h"
+#include "brw_vs.h"
 
 extern "C" {
 #include "main/macros.h"

src/mesa/drivers/dri/i965/brw_vec4.h

@@ -30,13 +30,16 @@
 #include "program/hash_table.h"
 
 extern "C" {
-#include "brw_vs.h"
 #include "brw_context.h"
 #include "brw_eu.h"
 };
 
 #include "glsl/ir.h"
 
+struct brw_vec4_compile;
+struct brw_vs_compile;
+struct brw_vec4_prog_key;
+
 namespace brw {
 
 class dst_reg;

src/mesa/drivers/dri/i965/brw_vec4_reg_allocate.cpp

@@ -27,6 +27,7 @@ extern "C" {
 } /* extern "C" */
 
 #include "brw_vec4.h"
+#include "brw_vs.h"
 
 using namespace brw;
 

src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp

@@ -22,6 +22,7 @@
  */
 
 #include "brw_vec4.h"
+#include "brw_vs.h"
 #include "glsl/ir_uniform.h"
 extern "C" {
 #include "main/context.h"

src/mesa/drivers/dri/i965/brw_vec4_vp.cpp

@@ -29,6 +29,7 @@
 
 #include "brw_context.h"
 #include "brw_vec4.h"
+#include "brw_vs.h"
 extern "C" {
 #include "program/prog_parameter.h"
 #include "program/prog_print.h"

src/mesa/drivers/dri/i965/test_vec4_register_coalesce.cpp

@@ -23,6 +23,7 @@
 
 #include <gtest/gtest.h>
 #include "brw_vec4.h"
+#include "brw_vs.h"
 
 using namespace brw;