glsl: Fix usage of the wrong union member in program_resource_visitor::recursion.

In the array-of-struct case, recursion() takes the row_major flag for
each iteration from 't->fields.structure[i]', but 't' is not a record
type.  Inherit the array declaration row_major flag instead.

This mistake was found by running piglit on valgrind.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=69449
Cc: "9.1 9.2" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Tested-by: Kenneth Graunke <kenneth@whitecape.org>

src/glsl/link_uniforms.cpp

@@ -140,8 +140,8 @@ program_resource_visitor::recursion(const glsl_type *t, char **name,
 	 /* Append the subscript to the current variable name */
 	 ralloc_asprintf_rewrite_tail(name, &new_length, "[%u]", i);
 
-         recursion(t->fields.array, name, new_length,
-                   t->fields.structure[i].row_major, record_type);
+         recursion(t->fields.array, name, new_length, row_major,
+                   record_type);
 
          /* Only the first leaf-field of the record gets called with the
           * record type pointer.