statically detected ambiguities in Rascal grammar rules for Sym and Pattern

[jurgenvinju]

warning, ambiguity predicted:  callOrTree: Pattern expression  "("  {Pattern ","}* arguments  KeywordArguments[Pattern] keywordArguments  ")"  and  splice: "*"  Pattern argument  lack left or right associativity or priority (>)
warning, ambiguity predicted:  callOrTree: Pattern expression  "("  {Pattern ","}* arguments  KeywordArguments[Pattern] keywordArguments  ")"  and  negative: "-"  Pattern argument  lack left or right associativity or priority (>)
warning, ambiguity predicted:  callOrTree: Pattern expression  "("  {Pattern ","}* arguments  KeywordArguments[Pattern] keywordArguments  ")"  and  splicePlus: "+"  Pattern argument  lack left or right associativity or priority (>)
warning, ambiguity predicted:  except: Sym symbol  "!"  NonterminalLabel label  and  startOfLine: "^"  Sym symbol  lack left or right associativity or priority (>)
warning, ambiguity predicted:  iter: Sym symbol  "+"  and  startOfLine: "^"  Sym symbol  lack left or right associativity or priority (>)
warning, ambiguity predicted:  optional: Sym symbol  "?"  and  startOfLine: "^"  Sym symbol  lack left or right associativity or priority (>)
warning, ambiguity predicted:  column: Sym symbol  "@"  IntegerLiteral column  and  startOfLine: "^"  Sym symbol  lack left or right associativity or priority (>)
warning, ambiguity predicted:  endOfLine: Sym symbol  "$"  and  startOfLine: "^"  Sym symbol  lack left or right associativity or priority (>)
warning, ambiguity predicted:  labeled: Sym symbol  NonterminalLabel label  and  startOfLine: "^"  Sym symbol  lack left or right associativity or priority (>)
warning, ambiguity predicted:  iterStar: Sym symbol  "*"  and  startOfLine: "^"  Sym symbol  lack left or right associativity or priority (>)