code: @Nonnull
      public BugInstance addSourceLine(ClassContext classContext, Method method, InstructionHandle handle) {
          SourceLineAnnotation sourceLineAnnotation = SourceLineAnnotation.fromVisitedInstruction(classContext, method,
                  handle.getPosition());
          if (sourceLineAnnotation != null) {
              add(sourceLineAnnotation);
          }
          return this;
      }
docs: Add source line annotation for given Location in a method.
  
  @param classContext
  the ClassContext
  @param method
  the Method
  @param handle
  InstructionHandle of an instruction in the method
  @return this BugInstance