Optimize parser memory consumption. Remove 'prev' and 'block_size' fields form the linked list structure. Remove 'magic' field from structures used in parser.

jerry-core/parser/js/lexer.h

@@ -1,4 +1,4 @@
-/* Copyright 2014 Samsung Electronics Co., Ltd.
+/* Copyright 2014-2015 Samsung Electronics Co., Ltd.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,7 +22,7 @@
 #define INVALID_LITERAL UINT32_MAX
 
 /* Keywords.  */
-typedef enum
+typedef enum __attr_packed___
 {
   /* Not a keyword.  */
   KW_NONE = 0,
@@ -81,7 +81,7 @@ keyword;
 
 
 /* Type of tokens.  */
-typedef enum
+typedef enum __attr_packed___
 {
   TOK_EOF = 0, // End of file
   TOK_NAME, // Identifier

jerry-core/parser/js/literal.h

@@ -19,7 +19,7 @@
 #include "ecma-globals.h"
 #include "lp-string.h"
 
-typedef enum
+typedef enum __attr_packed___
 {
   LIT_UNKNOWN,
   LIT_STR,

jerry-core/parser/js/opcodes-dumper.h

@@ -1,4 +1,4 @@
-/* Copyright 2014 Samsung Electronics Co., Ltd.
+/* Copyright 2014-2015 Samsung Electronics Co., Ltd.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,7 +20,7 @@
 #include "ecma-globals.h"
 #include "lexer.h"
 
-typedef enum
+typedef enum __attr_packed___
 {
   OPERAND_LITERAL,
   OPERAND_TMP
@@ -39,7 +39,7 @@ typedef struct
 }
 operand;
 
-typedef enum
+typedef enum __attr_packed___
 {
   VARG_FUNC_DECL,
   VARG_FUNC_EXPR,

jerry-core/parser/js/scopes-tree.cpp

@@ -30,7 +30,6 @@ static void
 assert_tree (scopes_tree t)
 {
   JERRY_ASSERT (t != NULL);
-  JERRY_ASSERT (t->t.magic == TREE_MAGIC);
 }
 
 static idx_t
@@ -648,7 +647,6 @@ scopes_tree_init (scopes_tree parent)
 {
   scopes_tree tree = (scopes_tree) mem_heap_alloc_block (sizeof (scopes_tree_int), MEM_HEAP_ALLOC_SHORT_TERM);
   memset (tree, 0, sizeof (scopes_tree_int));
-  tree->t.magic = TREE_MAGIC;
   tree->t.parent = (tree_header *) parent;
   tree->t.children = null_list;
   tree->t.children_num = 0;

jerry-core/parser/js/syntax-errors.h

@@ -79,7 +79,7 @@
 } while (0)
 #endif /* JERRY_NDEBUG */
 
-typedef enum
+typedef enum __attr_packed___
 {
   PROP_DATA,
   PROP_SET,