* coretypes.h (enum symbol_visibility): Relocate here.
	* flag-types.h (enum symbol_visibility): Remove.
	* tree-core.h (enum symbol_visibility): Remove.

Index: coretypes.h
===================================================================
*** coretypes.h	(revision 224292)
--- coretypes.h	(working copy)
*************** enum function_class {
*** 263,268 ****
--- 263,278 ----
    function_c11_misc
  };
  
+ /* Enumerate visibility settings.  This is deliberately ordered from most
+    to least visibility.  */
+ enum symbol_visibility
+ {
+   VISIBILITY_DEFAULT,
+   VISIBILITY_PROTECTED,
+   VISIBILITY_HIDDEN,
+   VISIBILITY_INTERNAL
+ };
+ 
  /* Suppose that higher bits are target dependent. */
  #define MEMMODEL_MASK ((1<<16)-1)
  
Index: flag-types.h
===================================================================
*** flag-types.h	(revision 224292)
--- flag-types.h	(working copy)
*************** enum debug_struct_file
*** 91,109 ****
    DINFO_STRUCT_FILE_ANY     /* Debug structs defined in all files. */
  };
  
- /* Enumerate visibility settings.  This is deliberately ordered from most
-    to least visibility.  */
- #ifndef SYMBOL_VISIBILITY_DEFINED
- #define SYMBOL_VISIBILITY_DEFINED
- enum symbol_visibility
- {
-   VISIBILITY_DEFAULT,
-   VISIBILITY_PROTECTED,
-   VISIBILITY_HIDDEN,
-   VISIBILITY_INTERNAL
- };
- #endif
- 
  /* Enumerate Objective-c instance variable visibility settings. */
  
  enum ivar_visibility
--- 91,96 ----
Index: tree-core.h
===================================================================
*** tree-core.h	(revision 224292)
--- tree-core.h	(working copy)
*************** enum cv_qualifier {
*** 431,447 ****
    TYPE_QUAL_ATOMIC   = 0x8
  };
  
- /* Enumerate visibility settings.  */
- #ifndef SYMBOL_VISIBILITY_DEFINED
- #define SYMBOL_VISIBILITY_DEFINED
- enum symbol_visibility {
-   VISIBILITY_DEFAULT,
-   VISIBILITY_PROTECTED,
-   VISIBILITY_HIDDEN,
-   VISIBILITY_INTERNAL
- };
- #endif  // SYMBOL_VISIBILITY_DEFINED
- 
  /* Standard named or nameless data types of the C compiler.  */
  enum tree_index {
    TI_ERROR_MARK,
--- 431,436 ----