Code before warnings are enabled at line 11, column 1.  See page 431 of PBP.  (Severity: 4)
Comma used to separate statements at line 59, column 5.  See pages 68,71 of PBP.  (Severity: 4)
Comma used to separate statements at line 69, column 3.  See pages 68,71 of PBP.  (Severity: 4)