ctf-reader: Fix representation of multidimensional arrays

ctf-reader: Fix representation of multidimensional arrays

To build an IR for multidimensional array the CTF front-end iterates
over the element types recursively.

So, consider the array definition:

  char a[2][3][4][5];

It's represented as

  'char[2][3][4] a[5]'

instead of:

  'char a[2][3][4][5]'

It always considers multidimensional arrays as unidimensional creating
a `array-type-def' node for each dimension:

  <array-type-def dimensions='1' type-id='type-id-1' ... >
    <subrange length='2' type-id='type-id-3' id='type-id-4'/>
  </array-type-def>
  <array-type-def dimensions='1' type-id='type-id-2' ... >
    <subrange length='3' type-id='type-id-3' id='type-id-6'/>
  </array-type-def>
  ...

Instead of:

  <array-type-def dimensions='4' type-id='type-id-1' ... >
     <subrange length='2' type-id='type-id-3' id='type-id-4'/>
     <subrange length='3' type-id='type-id-3' id='type-id-5'/>
     ...
  </array-type-def>

Fixed thus.

	* src/abg-ctf-reader.cc (+build_array_ctf_range): New definition.
	* tests/data/Makefile.am: Add new testcase.
	* tests/data/test-read-ctf/test-array-mdimension.abi: New testcase.
	* tests/data/test-read-ctf/test-array-mdimension.c: Likewise.
	* tests/data/test-read-ctf/test-array-mdimension.o: Likewise.
	* tests/data/test-read-ctf/test9.o.abi: Adjust.
	* tests/test-read-ctf.cc: Update testsuite.

Signed-off-by: Guillermo E. Martinez <guillermo.e.martinez@oracle.com>
Signed-off-by: Dodji Seketeli <dodji@redhat.com>