interpret.cc (STOREA): Rewrite using temporary variable to avoid double-macro expansion side-effects.

        * interpret.cc (STOREA): Rewrite using temporary variable to
        avoid double-macro expansion side-effects.
        (STOREI): Likewise.
        (STOREF): Likewise.
        (STOREL)[SIZEOF_VOID_P == 8]: Likewise.
        (STORED)[SIZEOF_VOID_P == 8]: Likewise.
        (STOREL)[SIZEOF_VOID_P != 8]: Likewise.
        (STORED)[SIZEOF_VOID_P != 8]: Likewise.
        (POKEI): Likewise.

From-SVN: r124746