Parse eagerly inside block scopes.

src/scopes.h

Index: src/scopes.h
diff --git a/src/scopes.h b/src/scopes.h
index 83703716d24e927dfe53a4527b39dde897d3e912..ba45cc47ad6825564b14652ecdb65ec91fddbdcb 100644
--- a/src/scopes.h
+++ b/src/scopes.h
@@ -470,6 +470,9 @@ class Scope: public ZoneObject {
   // Make sure this scope and all outer scopes are eagerly compiled.
   void ForceEagerCompilation()  { force_eager_compilation_ = true; }
 
+  // Determine if we can parse a function literal in this scope lazily.
+  bool AllowsLazyParsing() const;
+
   // Determine if we can use lazy compilation for this scope.
   bool AllowsLazyCompilation() const;