Unify kMaxArguments with number of bits used to encode it.

src/parser.h

Index: src/parser.h
diff --git a/src/parser.h b/src/parser.h
index 0f85f91583b161ceab4d80d6cd81b570f144f6d9..6dcf7f129faa021e9f0d332a44c92ea3a7517aa2 100644
--- a/src/parser.h
+++ b/src/parser.h
@@ -448,11 +448,6 @@ class Parser {
                        Vector<Handle<String> > args);
 
  private:
-  // Limit on number of function parameters is chosen arbitrarily.
-  // Code::Flags uses only the low 17 bits of num-parameters to
-  // construct a hashable id, so if more than 2^17 are allowed, this
-  // should be checked.
-  static const int kMaxNumFunctionParameters = 32766;
   static const int kMaxNumFunctionLocals = 131071;  // 2^17-1
 
   enum Mode {