glsl: Include missing header in slang_ir.h.

Include prog_instruction.h for gl_inst_opcode symbol.

diff --git a/src/mesa/slang/slang_ir.h b/src/mesa/slang/slang_ir.h
index b7a3737..ce9a6c5 100644 (file)
--- a/src/mesa/slang/slang_ir.h
+++ b/src/mesa/slang/slang_ir.h
@@ -37,6 +37,7 @@
 #include "slang_compile.h"
 #include "slang_label.h"
 #include "main/mtypes.h"
+#include "program/prog_instruction.h"
 
 
 /**