Description:
------------
PHP 5.4 allows us to make a call after array dereference:

    $a = [function () {  return 42;  }];
    var_dump( $a[0]() );
    // int(42)

PHP 5.5 allows us to dereferende literal array even:

    var_dump([42][0]);
    // int(42)

But combination of this features cause a syntax error.
Test in a sandbox: http://3v4l.org/1CHXs

Test script:
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var_dump([function () {  return 42;  }][0]());

Expected result:
----------------
int(42)

Actual result:
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Parse error: syntax error, unexpected '(' in ...