Remove ES_NEXT macro (#4915)

- remove all '#JERRY_ESNEXT' macro
- remove 5.1 build profile, update test runner accordingly (Note: all builtins are turn on by default)
- move tests from tests/jerry/esnext into tests/jerry, concatenate files with same names
- add skiplist to some snapshot tests that were supported only in 5.1
- fix doxygen issues that were hidden before (bc. of es.next macro)

Co-authored-by: Martin Negyokru negyokru@inf.u-szeged.hu
JerryScript-DCO-1.0-Signed-off-by: Adam Szilagyi aszilagy@inf.u-szeged.hu

jerry-core/ecma/builtin-objects/ecma-builtin-helpers.h

@@ -28,6 +28,37 @@
  * @{
  */
 
+/**
+ * List of built-in routine identifiers.
+ */
+enum
+{
+  /** These routines must be in this order */
+  ECMA_REGEXP_PROTOTYPE_ROUTINE_START = 0,
+  ECMA_REGEXP_PROTOTYPE_ROUTINE_EXEC,
+#if JERRY_BUILTIN_ANNEXB
+  ECMA_REGEXP_PROTOTYPE_ROUTINE_COMPILE,
+#endif /* JERRY_BUILTIN_ANNEXB */
+
+  ECMA_REGEXP_PROTOTYPE_ROUTINE_TEST,
+  ECMA_REGEXP_PROTOTYPE_ROUTINE_TO_STRING,
+  ECMA_REGEXP_PROTOTYPE_ROUTINE_GET_SOURCE,
+  ECMA_REGEXP_PROTOTYPE_ROUTINE_GET_FLAGS,
+
+  ECMA_REGEXP_PROTOTYPE_ROUTINE_GET_GLOBAL,
+  ECMA_REGEXP_PROTOTYPE_ROUTINE_GET_IGNORE_CASE,
+  ECMA_REGEXP_PROTOTYPE_ROUTINE_GET_MULTILINE,
+  ECMA_REGEXP_PROTOTYPE_ROUTINE_GET_STICKY,
+  ECMA_REGEXP_PROTOTYPE_ROUTINE_GET_UNICODE,
+  ECMA_REGEXP_PROTOTYPE_ROUTINE_GET_DOT_ALL,
+
+  ECMA_REGEXP_PROTOTYPE_ROUTINE_SYMBOL_SEARCH,
+  ECMA_REGEXP_PROTOTYPE_ROUTINE_SYMBOL_MATCH,
+  ECMA_REGEXP_PROTOTYPE_ROUTINE_SYMBOL_REPLACE,
+  ECMA_REGEXP_PROTOTYPE_ROUTINE_SYMBOL_SPLIT,
+  ECMA_REGEXP_PROTOTYPE_ROUTINE_SYMBOL_MATCH_ALL,
+};
+
 /**
  * Mode of string index routine.
  */
@@ -90,10 +121,7 @@ typedef struct
 } ecma_replace_context_t;
 
 void ecma_builtin_replace_substitute (ecma_replace_context_t *ctx_p);
-
-#if JERRY_ESNEXT
 bool ecma_builtin_is_regexp_exec (ecma_extended_object_t *obj_p);
-#endif /* JERRY_ESNEXT */
 
 #if JERRY_BUILTIN_DATE