tst> sho user
USER is "U1"
tst> select * from v$version where rownum=1;

BANNER
--------------------------------------------------------------------------------
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production

tst> create table t1 as select object_id, object_name from all_objects;

Table created.

tst> create or replace package p1 as
  2     t1_rec t1%rowtype;
  3  end;
  4  /

Package created.

tst> create or replace procedure c1 as
  2    t1_c_rec t1%rowtype;
  3    cursor c is select object_id, object_name from t1;
  4  begin
  5    open c;
  6    loop
  7      fetch c into t1_c_rec;
  8      P1.T1_REC := t1_c_rec;
  9      exit when c%notfound;
 10    end loop;
 11  end;
 12  /

Procedure created.

tst> exec c1

PL/SQL procedure successfully completed.

ts2> create or replace package p1 as
  2     t1_rec t1%rowtype;
  3     var1 number;
  4  end;
  5  /

Package created.

tst> exec c1
BEGIN c1; END;

*
ERROR at line 1:
ORA-00600: internal error code, arguments: [pfrdef1_get_tdo#145: pin failed], [], [], [], [], [], [], [], [], [], [], []

tst> connect u1/u1@tst
Connected.
tst> create or replace package p1 as
  2     t1_rec t1%rowtype;
  3  end;
  4  /

Package created.

tst> exec c1

PL/SQL procedure successfully completed.

ts2> create or replace package p1 as
  2     var1 number;
  3     t1_rec t1%rowtype;
  4  end;
  5  /

Package created.

tst> exec c1
BEGIN c1; END;

*
ERROR at line 1:
ORA-04068: existing state of packages has been discarded
ORA-04061: existing state of package "U1.P1" has been invalidated
ORA-04065: not executed, altered or dropped package "U1.P1"
ORA-06508: PL/SQL: could not find program unit being called: "U1.P1"
ORA-06512: at "U1.C1", line 8
ORA-06512: at line 1