glslang portability: add a #include <cassert>.


git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@31082 e7fa87d3-cd2b-0410-9028-fcbf551c1848
diff --git a/SPIRV/spvIR.h b/SPIRV/spvIR.h
index 6ea0a0c..91a434f 100644
--- a/SPIRV/spvIR.h
+++ b/SPIRV/spvIR.h
@@ -54,6 +54,7 @@
 

 #include <vector>

 #include <iostream>

+#include <cassert>

 

 namespace spv {