Symbolize script: make dash-compatible and pull vdex file for oatdump.

Make dash-compatible.
Check result on Linux 4.15.0-91-generic #92~16.04.1-Ubuntu is
shown as follows:
  $ shellcheck -s sh art/tools/symbolize.sh
  In art/tools/symbolize.sh line 29:
    function one() {
    ^-- SC2112: 'function' keyword is non-standard. Delete it.
  ...

Pull out vdex file for oatdump command.

Test: bash symbolize.sh
Test: bash --posix symbolize.sh
Test: dash symbolize.sh

Change-Id: I7374b4f6ebd525ac064ac5505e88384eadd16255
1 file changed