Drop bogus default parameter to BuildFunctionInfo.

src/compiler.h

Index: src/compiler.h
diff --git a/src/compiler.h b/src/compiler.h
index a6397147f0254f1580563f485646e48c4573274d..e8beca5a05a68f2230108bec4127c16f5ef189f1 100644
--- a/src/compiler.h
+++ b/src/compiler.h
@@ -692,9 +692,9 @@ class Compiler : public AllStatic {
       NativesFlag is_natives_code);
 
   // Create a shared function info object (the code may be lazily compiled).
-  static Handle<SharedFunctionInfo> BuildFunctionInfo(
-      FunctionLiteral* node, Handle<Script> script,
-      CompilationInfo* outer = NULL);
+  static Handle<SharedFunctionInfo> BuildFunctionInfo(FunctionLiteral* node,
+                                                      Handle<Script> script,
+                                                      CompilationInfo* outer);
 
   enum ConcurrencyMode { NOT_CONCURRENT, CONCURRENT };