fixed clang warnings

src/compiler/ASTi.h

@@ -91,13 +91,11 @@ struct Node {
 	Node 	*next;
 	int 	 offset, 
 			 length;
-	char 	 body[];
 };
 
 typedef struct {
 	Node 	 base;
 	ExprKind kind;
-	char 	 body[];
 } ExprNode;
 
 typedef struct {

src/objects/o_list.c

@@ -99,11 +99,6 @@ static Object *copy(Object *self, Heap *heap, Error *err)
 	return (Object*) ls2;
 }
 
-static inline int calc_capacity(int mapper_size)
-{
-	return mapper_size * 2.0 / 3.0;
-}
-
 Object *Object_NewList(int capacity, Heap *heap, Error *error)
 {
 	// Handle default args.