Add basic intra-stage linking validation for matching types and qualification of uniforms/ins/outs/globals, function body duplication, and mixing ES/non-ES shaders.

Still need to handle arrays and built-in redeclarations, and many more rules, but this puts the basics in place.


git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@23225 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Test/link3.frag

@@ -0,0 +1,5 @@
+#version 300 es
+
+precision highp float;
+
+in vec2 iv3;