Finish virtually all of the remaining atomic counter functionality. Still need offset collision detection.

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@27712 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Test/310.comp

@@ -139,3 +139,14 @@ void mainAC()
 }
 
 layout(binding = 1) uniform mediump atomic_uint counterBad;  // ERROR, not highp
+
+layout(binding = 2, offset = 4) uniform atomic_uint countArr[4];
+uniform int i;
+
+void opac()
+{
+    int a[3];
+    a[counter];         // ERROR
+    countArr[2];
+    countArr[i];
+}