compiler: Change shader_info->tes.vertex_order into a ccw boolean.

The vertex order is either clockwise or counterclockwise.  We can just
store a "ccw" boolean rather than GLenum values.  I don't want to use
GLenums in a Vulkan driver, and even in GL a simple boolean works fine.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Timothy Arceri <timothy.arceri@collabora.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

src/compiler/shader_info.h

@@ -150,7 +150,8 @@ typedef struct shader_info {
       struct {
          uint32_t primitive_mode; /* GL_TRIANGLES, GL_QUADS or GL_ISOLINES */
          uint32_t spacing;        /* GL_EQUAL, GL_FRACTIONAL_EVEN, GL_FRACTIONAL_ODD */
-         uint32_t vertex_order;   /* GL_CW or GL_CCW */
+         /** Is the vertex order counterclockwise? */
+         bool ccw;
          bool point_mode;
       } tes;
    };