Fix the same-line comments detection in the empty-lines rule

Fixes #84.

fixtures/empty-lines.go

@@ -2,6 +2,8 @@
 
 package fixtures
 
+import "time"
+
 func f1(x *int) bool { // MATCH /extra empty line at the start of a block/
 
 	return x > 2
@@ -127,3 +129,34 @@ func f18(x *int) bool {
 
 	return false
 }
+
+func w() {
+	select {
+	case <-time.After(dur):
+		// TODO: Handle Ctrl-C is pressed in `mysql` client.
+		// return 1 when SLEEP() is KILLed
+	}
+	return 0, false, nil
+}
+
+func x() {
+	if tagArray[2] == "req" {
+		bit := len(u.reqFields)
+		u.reqFields = append(u.reqFields, name)
+		reqMask = uint64(1) << uint(bit)
+		// TODO: if we have more than 64 required fields, we end up
+		// not verifying that all required fields are present.
+		// Fix this, perhaps using a count of required fields?
+	}
+
+	if err == nil { // No need to refresh if the stream is over or failed.
+		// Consider any buffered body data (read from the conn but not
+		// consumed by the client) when computing flow control for this
+		// stream.
+		v := int(cs.inflow.available()) + cs.bufPipe.Len()
+		if v < transportDefaultStreamFlow-transportDefaultStreamMinRefresh {
+			streamAdd = int32(transportDefaultStreamFlow - v)
+			cs.inflow.add(streamAdd)
+		}
+	}
+}

rule/empty-lines.go

@@ -100,10 +100,12 @@ func (w lintEmptyLines) commentBetween(position token.Position, node ast.Node) b
 		return false
 	}
 
-	commentStart := w.position(comments[0].Pos())
+	for _, comment := range comments {
-	if commentStart.Line-position.Line == 1 || commentStart.Line-position.Line == -1 {
+		start, end := w.position(comment.Pos()), w.position(comment.End())
+		if start.Line-position.Line == 1 || position.Line-end.Line == 1 {
 			return true
 		}
+	}
 
 	return false
 }