Add line info support. (#2286)

Add line info data to byte, which allows getting a backtrace info directly
from the engine. Snapshots are not supported.

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com

jerry-core/ecma/builtin-objects/ecma-builtin-function.c

@@ -21,8 +21,12 @@
 #include "ecma-function-object.h"
 #include "ecma-lex-env.h"
 #include "ecma-try-catch-macro.h"
-#include "lit-magic-strings.h"
 #include "js-parser.h"
+#include "lit-magic-strings.h"
+
+#ifdef JERRY_ENABLE_LINE_INFO
+#include "jcontext.h"
+#endif /* JERRY_ENABLE_LINE_INFO */
 
 #define ECMA_BUILTINS_INTERNAL
 #include "ecma-builtins-internal.h"
@@ -155,6 +159,10 @@ ecma_builtin_function_dispatch_construct (const ecma_value_t *arguments_list_p,
   ECMA_STRING_TO_UTF8_STRING (arguments_str_p, arguments_buffer_p, arguments_buffer_size);
   ECMA_STRING_TO_UTF8_STRING (function_body_str_p, function_body_buffer_p, function_body_buffer_size);
 
+#ifdef JERRY_ENABLE_LINE_INFO
+  JERRY_CONTEXT (resource_name) = ecma_make_magic_string_value (LIT_MAGIC_STRING__EMPTY);
+#endif /* JERRY_ENABLE_LINE_INFO */
+
   ecma_compiled_code_t *bytecode_data_p = NULL;
 
   ecma_value_t ret_value = parser_parse_script (arguments_buffer_p,