symbol.h: move struct RSymbol

* symbol.h (struct RSymbol): move from internal.h.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47821 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,7 @@
+Mon Oct  6 22:37:09 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* symbol.h (struct RSymbol): move from internal.h.
+
 Mon Oct  6 21:43:03 2014  NAKAMURA Usaku  <usa@ruby-lang.org>
 
 	* error.c: update exception tree. [DOC]

gc.c

@@ -381,7 +381,6 @@ typedef struct RVALUE {
 	struct RMatch  match;
 	struct RRational rational;
 	struct RComplex complex;
-	struct RSymbol symbol;
 	struct {
 	    struct RBasic basic;
 	    VALUE v1;

internal.h

@@ -420,12 +420,6 @@ struct RRational {
 
 #define RRATIONAL(obj) (R_CAST(RRational)(obj))
 
-struct RSymbol {
-    struct RBasic basic;
-    VALUE fstr;
-    ID type;
-};
-
 struct RFloat {
     struct RBasic basic;
     double float_value;

symbol.h

@@ -14,6 +14,12 @@
 
 #include "id.h"
 
+struct RSymbol {
+    struct RBasic basic;
+    VALUE fstr;
+    ID type;
+};
+
 #define RSYMBOL(obj) (R_CAST(RSymbol)(obj))
 
 static inline int