test const-indexed global constant array
test const-indexed global constant array

A test case is updated, to test three feature:
  variable-indexed global constant array
  const-indexed global constant array
  global constant scalar

Signed-off-by: Homer Hsing <f17cb7083eb6a94c3fb9d8f09ceefa518f721ab2@intel.com>
Reviewed-by: Yang, Rong R <78759e37dc7114caed18f74e7515c5cb519dbf6d@intel.com>

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