src/jdk/nashorn/internal/parser/Parser.java

*** 2434,2444 ****
          }
  
          // name is null, generate anonymous name
          boolean isAnonymous = false;
          if (name == null) {
!             final String tmpName = "_L" + source.getLine(Token.descPosition(token));
              name = new IdentNode(functionToken, Token.descPosition(functionToken), tmpName);
              isAnonymous = true;
          }
  
          expect(LPAREN);
--- 2434,2444 ----
          }
  
          // name is null, generate anonymous name
          boolean isAnonymous = false;
          if (name == null) {
!             final String tmpName = "_L" + functionLine;
              name = new IdentNode(functionToken, Token.descPosition(functionToken), tmpName);
              isAnonymous = true;
          }
  
          expect(LPAREN);