Provide a function to get a symbols full name

lib/libvcc/vcc_compile.h

@@ -322,6 +322,7 @@ void vcc_Eval_Func(struct vcc *, const struct vjsn_val *,
     const char *, const struct symbol *);
 void VCC_GlobalSymbol(struct symbol *, vcc_type_t fmt, const char *pfx);
 struct symbol *VCC_HandleSymbol(struct vcc *, vcc_type_t , const char *);
+void VCC_SymName(struct vsb *, const struct symbol *);
 
 /* vcc_obj.c */
 void vcc_Var_Init(struct vcc *);

lib/libvcc/vcc_symb.c

@@ -72,6 +72,16 @@ VCC_PrintCName(struct vsb *vsb, const char *b, const char *e)
 			VSB_printf(vsb, "_%02x_", *b);
 }
 
+void
+VCC_SymName(struct vsb *vsb, const struct symbol *sym)
+{
+	if (sym->parent != NULL && sym->parent->parent != NULL) {
+		VCC_SymName(vsb, sym->parent);
+		VSB_putc(vsb, '.');
+	}
+	VSB_cat(vsb, sym->name);
+}
+
 static struct symbol *
 vcc_new_symbol(struct vcc *tl, const char *b, const char *e)
 {

lib/libvcc/vcc_xref.c

@@ -326,17 +326,6 @@ vcc_CheckUses(struct vcc *tl)
 
 /*---------------------------------------------------------------------*/
 
-static void
-vcc_pnam(struct vcc *tl, const struct symbol *sym)
-{
-
-	if (sym->parent != tl->symbols) {
-		vcc_pnam(tl, sym->parent);
-		Fc(tl, 0, ".");
-	}
-	Fc(tl, 0, "%s", sym->name);
-}
-
 static void v_matchproto_(symwalk_f)
 vcc_xreftable(struct vcc *tl, const struct symbol *sym)
 {
@@ -347,7 +336,7 @@ vcc_xreftable(struct vcc *tl, const struct symbol *sym)
 	Fc(tl, 0, " * %-8s ", sym->kind->name);
 	Fc(tl, 0, " %-9s ", sym->type->name);
 	Fc(tl, 0, " %2u %2u ", sym->lorev, sym->hirev);
-	vcc_pnam(tl, sym);
+	VCC_SymName(tl->fc, sym);
 	if (sym->wildcard != NULL)
 		Fc(tl, 0, "*");
 	Fc(tl, 0, "\n");