[fpc-pascal] DWARF line info cannot be used gdb

[dmitry boyarintsev]

compile line
fpc -Aas -gw2 test.pas
gdb test.exe
...
(gdb) b test.pas:7
warning: (Internal error: pc 0x40144e in read in psymtab, but not in symtab.)

warning: (Internal error: pc 0x40144e in read in psymtab, but not in symtab.)

Breakpoint 1 at 0x40144e: file test.pas, line 7.

...
break point works ok.