style: beware of collisions on status

[Akim Demaille]

I had a collision in a later patch.

commit a108d84f883df77c5c32ae8875406f669d7fe38d
Author: Akim Demaille <address@hidden>
Date:   Sun Jan 27 19:54:05 2019 +0100

    style: beware of collisions on status
    
    * src/symtab.h (status): Rename as...
    (declaration_status): this, to avoid colliding with status, the
    argument of 'usage'.
    'status' seems a tad too general to be used only here.

diff --git a/src/symtab.h b/src/symtab.h
index c2281126..8f4f5a1a 100644
--- a/src/symtab.h
+++ b/src/symtab.h
@@ -72,7 +72,7 @@ typedef enum
     needed,
     /** Defined with %type or %token (good).  */
     declared,
-  } status;
+  } declaration_status;
 
 enum code_props_type
   {
@@ -144,7 +144,7 @@ struct sym_content
   int user_token_number;
 
   symbol_class class;
-  status status;
+  declaration_status status;
 };
 
 /** Undefined user number.  */
@@ -321,7 +321,7 @@ typedef struct {
 
   /** Its status : "undeclared", "used" or "declared".
       It cannot be "needed".  */
-  status status;
+  declaration_status status;
 
   /** Any \c %destructor and %printer declared for this
       semantic type.  */