Fix gcc-4.6 warnings.

src/runtime.cc

Index: src/runtime.cc
diff --git a/src/runtime.cc b/src/runtime.cc
index 08b944a8a1b00fdc3908d9f66d4ea74a76c20245..f2e23f4e4e7b27ed2599f0f84516d5188d89ce23 100644
--- a/src/runtime.cc
+++ b/src/runtime.cc
@@ -11218,18 +11218,14 @@ class ScopeIterator {
       // Global code
       CompilationInfo info(script);
       info.MarkAsGlobal();
-      bool result = ParserApi::Parse(&info);
-      ASSERT(result);
-      result = Scope::Analyze(&info);
-      ASSERT(result);
+      CHECK(ParserApi::Parse(&info));
+      CHECK(Scope::Analyze(&info));
       scope = info.function()->scope();
     } else {
       // Function code
       CompilationInfo info(shared_info);
-      bool result = ParserApi::Parse(&info);
-      ASSERT(result);
-      result = Scope::Analyze(&info);
-      ASSERT(result);
+      CHECK(ParserApi::Parse(&info));
+      CHECK(Scope::Analyze(&info));
       scope = info.function()->scope();
     }