Parser optimizations.

- parser is now non-recursive (i.e. parse function is not called recursively in any case);
 - byte-code is now more compact:
    - constants are now not immediately dumped upon occurence, but later - where necessary;
    - assignments are combined with unary / binary operations;
    - binary operations are encoded more compactly in many cases;
 - byte-code arrays are now allocated separately for each scope (so, GC of the scopes now becomes possible);
 - byte-code is dumped directly into corresponding byte-code arrays:
   - linked lists of op_meta are not now used for main code of a scope.

JerryScript-DCO-1.0-Signed-off-by: Ruben Ayrapetyan r.ayrapetyan@samsung.com
JerryScript-DCO-1.0-Signed-off-by: Andrey Shitov a.shitov@samsung.com

jerry-core/vm/opcodes-ecma-support.h

@@ -32,11 +32,17 @@
 #include "ecma-reference.h"
 #include "ecma-regexp-object.h"
 #include "ecma-try-catch-macro.h"
-#include "serializer.h"
 
 bool vm_is_reg_variable (vm_idx_t);
 ecma_completion_value_t get_variable_value (vm_frame_ctx_t *, vm_idx_t, bool);
 ecma_completion_value_t set_variable_value (vm_frame_ctx_t *, vm_instr_counter_t, vm_idx_t, ecma_value_t);
 ecma_completion_value_t vm_fill_varg_list (vm_frame_ctx_t *, ecma_length_t, ecma_collection_header_t *);
-extern void vm_fill_params_list (vm_frame_ctx_t *, ecma_length_t, ecma_collection_header_t *);
+extern vm_instr_counter_t vm_fill_params_list (const bytecode_data_header_t *,
+                                               vm_instr_counter_t,
+                                               ecma_length_t,
+                                               ecma_collection_header_t *);
+extern ecma_completion_value_t vm_function_declaration (const bytecode_data_header_t *bytecode_header_p,
+                                                        bool is_strict,
+                                                        bool is_eval_code,
+                                                        ecma_object_t *lex_env_p);
 #endif /* OPCODES_ECMA_SUPPORT_H */