Add the parent scope/symbol to the debug symbol attributes.

git-svn-id: svn://svn.cc65.org/cc65/trunk@5094 b7a2c559-68d2-44c3-8de9-860c34a00d81

src/ld65/dbgsyms.h

@@ -55,6 +55,9 @@
 
 
 
+/* Forwards */
+struct Scope;
+
 /* Debug symbol structure */
 typedef struct DbgSym DbgSym;
 struct DbgSym {
@@ -64,6 +67,11 @@ struct DbgSym {
     Collection          LineInfos;      /* Line infos of definition */
     ExprNode*  		Expr;		/* Expression (0 if not def'd) */
     unsigned long       Size;           /* Symbol size if any */
+    union {
+        unsigned long   Id;             /* Id of parent while not resolved */
+        struct Scope*   Scope;          /* Parent scope */
+        struct DbgSym*  Sym;            /* Parent symbol  for cheap locals */
+    } Parent;
     unsigned            Name;  	       	/* Name */
     unsigned char	Type;		/* Type of symbol */
     unsigned char       AddrSize;       /* Address size of symbol */