Full thread safety working:

- don't use [] for map lookups, it can modify the map
 - copy up built-in symbols out of shared symbol table levels before modifying them
 - enforce shallow vs. deep TType copies
 - combine maxArraySize with the array dimensions vector, encapsulate
 - remove chaining of array types


git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@22953 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Test/120.frag

@@ -114,3 +114,12 @@ void v2()
 {
     return v1();  // ERROR, no expression allowed, even though void
 }
+
+void atest()
+{
+    vec4 v = gl_TexCoord[1];
+    v += gl_TexCoord[3];
+}
+
+varying vec4 gl_TexCoord[6];  // okay, assigning a size
+varying vec4 gl_TexCoord[5];  // ERROR, changing size