Support syntax error feedback in parser.

Now, parser correctly finishes parse procedure if syntax of source code is incorrect (syntax correctness is indicated using return value):
 - parser-internal memory management is performed using jsp_mm_alloc / jsp_mm_free;
 - upon detection of incorrect syntax, all parser-allocated memory regions are deallocated using jsp_mm_free_all and parse finishes with corresponding return value.

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

jerry-libc/include/setjmp.h

@@ -16,6 +16,8 @@
 #ifndef JERRY_LIBC_SETJMP_H
 #define JERRY_LIBC_SETJMP_H
 
+#include <stdint.h>
+
 #ifdef __cplusplus
 # define EXTERN_C "C"
 #else /* !__cplusplus */