Fixed lint errors caused by "runtime/references" rule and the rule itself is restored.

src/liveedit.cc

Index: src/liveedit.cc
diff --git a/src/liveedit.cc b/src/liveedit.cc
index 7d7b9c8790385bb93129fbe7575b7f3614d1a5be..bbec2789816580902c491fb9f765015a358e6d08 100644
--- a/src/liveedit.cc
+++ b/src/liveedit.cc
@@ -1743,7 +1743,7 @@ class MultipleFunctionTarget {
       LiveEdit::FunctionPatchabilityStatus status) {
     return CheckActivation(m_shared_info_array, m_result, frame, status);
   }
-  const char* GetNotFoundMessage() {
+  const char* GetNotFoundMessage() const {
     return NULL;
   }
  private:
@@ -1755,7 +1755,9 @@ class MultipleFunctionTarget {
 // Drops all call frame matched by target and all frames above them.
 template<typename TARGET>
 static const char* DropActivationsInActiveThreadImpl(
-    Isolate* isolate, TARGET& target, bool do_drop) {
+    Isolate* isolate,
+    TARGET& target,  // NOLINT
+    bool do_drop) {
   Debug* debug = isolate->debug();
   Zone zone(isolate);
   Vector<StackFrame*> frames = CreateStackMap(isolate, &zone);
@@ -2013,7 +2015,7 @@ class SingleFrameTarget {
     }
     return false;
   }
-  const char* GetNotFoundMessage() {
+  const char* GetNotFoundMessage() const {
     return "Failed to found requested frame";
   }
   LiveEdit::FunctionPatchabilityStatus saved_status() {