[binutils-gdb] Adjust more test cases to changed output of info var/func/type

[sergiodj+buildbot@sergiodj.net]

*** TEST RESULTS FOR COMMIT e3a91079b5e5669567424d3b2f31b48b7b89ef72 ***

Author: Andreas Arnez <arnez@linux.vnet.ibm.com>
Branch: master
Commit: e3a91079b5e5669567424d3b2f31b48b7b89ef72

Adjust more test cases to changed output of info var/func/type

After this commit:

  b744723f57 -- Show line numbers in output for "info var/func/type"

the test cases dbx.exp and info-fun.exp yield new FAILs because two
regular expressions have not been adjusted to the changed output yet.
This is fixed.

gdb/testsuite/ChangeLog:

	* gdb.base/dbx.exp (test_whereis): Adjust regexp to added line
	number information in output of "whereis" command.
	* gdb.base/info-fun.exp: Likewise, for "info fun" command.