Fixing line-table initialization issue: set itsLineNumberTableTop to 0 at the end of stopMethod so generation of multiple methods with source line information would work.

js/rhino/src/org/mozilla/classfile/ClassFileWriter.java

@@ -379,7 +379,7 @@ public class ClassFileWriter {
 
         itsExceptionTable = null;
         itsExceptionTableTop = 0;
-        itsLineNumberTable = null;
+        itsLineNumberTableTop = 0;
         itsCodeBufferTop = 0;
         itsCurrentMethod = null;
         itsMaxStack = 0;