This patch fixes the following error with Clang-6.0

```
jerryscript/jerry-core/api/jerry.c:1527:71: error: implicit conversion loses integer precision:
      'jerry_regexp_flags_t' to 'uint16_t' (aka 'unsigned short') [-Werror,-Wconversion]
  jerry_value_t ret_val = ecma_op_create_regexp_object (ecma_pattern, flags);
```

Also change the `jerry_create_regexp` and `jerry_create_regexp_sz` functions' `flags` parameter to `uint16_t` since the values created with `bitwise inclusive OR` are not part of the enum.

JerryScript-DCO-1.0-Signed-off-by: Daniel Balla dballa@inf.u-szeged.hu

This patch introduces a new builtin descriptor table to substitute the generated switch-case structure in 'ecma_instantiate_builtin',
also removes the corresponding helpers functions to simplify the instantiation process.

JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik frobert@inf.u-szeged.hu

JerryScript-DCO-1.0-Signed-off-by: Zsolt Borbély zsborbely.u-szeged@partner.samsung.com

JerryScript-DCO-1.0-Signed-off-by: Akos Kiss akiss@inf.u-szeged.hu

`PARSER_CLASS_SUPER_PROP_REFERENCE` flag should be applied for only binary lvalue tokens.
This patch fixed #2671.

JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik frobert@inf.u-szeged.hu

Fixes #2660

JerryScript-DCO-1.0-Signed-off-by: László Langó llango.u-szeged@partner.samsung.com

JerryScript-DCO-1.0-Signed-off-by: László Langó llango.u-szeged@partner.samsung.com

JerryScript-DCO-1.0-Signed-off-by: Akos Kiss akiss@inf.u-szeged.hu

This patch fixes #2652 and fixes #2653 as well, also reverts #2521.
Related part of the standard ECMAScript v5.1 15.12.3.10.

JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik frobert@inf.u-szeged.hu

- `ERR_SYSCALL` is a legacy that has not been used anymore since
  the removal of jerry-libc. This commit removes it from the port
  API.
- `ERR_DISABLED_BYTE_CODE` is a (relatively) recent addition to the
  fatal code enum. At the time it was added, the documentation has
  not been updated. This commit adds the missing documentation.
  (Plus, it removes a superfluous `JERRY_UNREACHABLE` from after a
  `jerry_fatal (ERR_DISABLED_BYTE_CODE)`.)

Note: As the port API is modified, this is an API-breaking change.

JerryScript-DCO-1.0-Signed-off-by: Akos Kiss akiss@inf.u-szeged.hu

All ECMA_LEXICAL_ENVIRONMENT_SUPER_OBJECT_BOUND type lexical environments should return their outer reference during resolving syntactic reference.
This patch fixes #2666.

JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik frobert@inf.u-szeged.hu

This patch fixes #2667.

JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik frobert@inf.u-szeged.hu

This patch fixes #2654.

JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik frobert@inf.u-szeged.hu

The format `1.0.{build}` is artificial, the 1.0 prefix has no
meaning, `{build}` is enough.

JerryScript-DCO-1.0-Signed-off-by: Akos Kiss akiss@inf.u-szeged.hu

JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik frobert@inf.u-szeged.hu

Recent failures of the Mbed OS target came from two independent
issues:
- some python packages started requiring Python>=2.7.10, and
- the latest Intervaltree 3.0.0 release was released broken.

This patch ensures a fresh python by 'lying' to the CI that this
is a Python project (Python images on the CI come with a recent
interpreter, not with the one shipped as default with the OS), and
locks Intervaltree to a stable version.

JerryScript-DCO-1.0-Signed-off-by: Akos Kiss akiss@inf.u-szeged.hu

Make sure to ignore static snapshots when sending backtrace information to the debugger.
The `JMEM_SET_NON_NULL_POINTER` macro requires the frame context's `bytecode_header_p` pointer to be a heap pointer, but due to the static snapshot it might not be, causing an assertion failure.

JerryScript-DCO-1.0-Signed-off-by: Daniel Balla dballa@inf.u-szeged.hu

Since recently, the newly released mbed-host-tests 1.4.4 gets
installed during the python requirement installation step. That
package requires pyocd>=0.14.0, which cannot be satisfied for
whatever reason. This quick fix pins mbed-host-tests to version
1.4.2, which does not have unsatisfiable requirements.

JerryScript-DCO-1.0-Signed-off-by: Akos Kiss akiss@inf.u-szeged.hu

The test runner used `&>>` to channel stderr to stdout and append
all that to a file. However, that's Bash 4 syntax, which is not
available everywhere, e.g., on MacOS. Bash pre-4 syntax requires
the classic `>>file 2>&1` notation.

This commit rewrites the test runner to use the portable syntax.
Moreover, it also rewrites `&>` to `>file 2>&1` for the sake of
consistency.

JerryScript-DCO-1.0-Signed-off-by: Akos Kiss akiss@inf.u-szeged.hu

The peek of the socket does not work on other platforms,
beacause the errno is not set correctly. The code path
added by #2427 Linux specific, so it has been guarded
to solve connection lost issues during debugging sessions
when the client does not send data but still connected.

JerryScript-DCO-1.0-Signed-off-by: László Langó llango.u-szeged@partner.samsung.com

The name of the database has been changed to jsremote-testrunner from remote-testrunner

JerryScript-DCO-1.0-Signed-off-by: Robert Sipka rsipka.uszeged@partner.samsung.com

Create a local lexical environment with the name of the function. While
this is not too memory efficient, some corner cases requires its existence.

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

JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik frobert@inf.u-szeged.hu

The issue was found when debugging IoT.js with static snapshots turned on, if an error was thrown an assertion failure was caused. The reason is the frame context's bytecode_header_p pointer was not a heap pointer. The jerry_debugger_breakpoint_hit function tries to set a compressed pointer which points to bytecode_header_p with the JMEM_CP_SET_NON_NULL_POINTER macro, which has an assertion that requires the above mentioned bytecode_header_p to be a heap pointer, which is obviously not.


Co-authored-by: Robert Fancsik frobert@inf.u-szeged.hu
JerryScript-DCO-1.0-Signed-off-by: Daniel Balla dballa@inf.u-szeged.hu

Exec operations{call, construct, super_call} related bytecode sequences no longer executed twice.
The execution continues with the next opcode or a specific bytecode sequence if an error occurs during the operation.

JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik frobert@inf.u-szeged.hu

VM_OC_PROP_GET is the general vm instruction for getting an object's property.
This opcode can be mutated into several other opcodes depending on the context (pre- post increment, ident reference).
Since these mutated opcodes perform additional checks and VM_OC_PROP_GET is a highly frequent instruction and it is worth to introduce a special case for it.

JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik frobert@inf.u-szeged.hu

In order to decrease the binary size of JerryScript, enabled the Thumb
instruction set that is supported on ARM Cortex-R series processors.

JerryScript-DCO-1.0-Signed-off-by: Roland Takacs rtakacs.uszeged@partner.samsung.com

This patches fixes floating point number parsing when the number starts with dot.

Fixes #2614.

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

JerryScript-DCO-1.0-Signed-off-by: László Langó llango.u-szeged@partner.samsung.com

This patch removes the ECMA_IS_VALUE_ERROR check from VM_OC_NOT, since the general toBoolean operation cannot throw an exception.

JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik frobert@inf.u-szeged.hu

In with contexts the object base value must be resolved before executing a call operation.
Since this happens rarely the base resolving code paths has been seperated to an other VM opcode
so these extra checks do not burden the general property call steps.

JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik frobert@inf.u-szeged.hu

The following stucture was highly frequented in the code base:

 - Get a builtin object // This operation increases the reference count of the object
 - Use it for create a new object
 - Deref the builtin object

After a builtin has been instantiated there is always at least one reference to "keep it alive",
so increase/decrease the reference count for getting the value only is unnecessary.

JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik frobert@inf.u-szeged.hu

Seperate the property based test from the `test-api.c` file.

JerryScript-DCO-1.0-Signed-off-by: Bela Toth tbela@inf.u-szeged.hu

The explicit boolean type conversion (introduced by #2575) desn't work
with TizenRT if custom boolean representation is used. Of course,
TizenRT gives an opportunity to use the C99 standard boolean (that works
well if that is set).

I've replaced all the explicit boolean type conversions with double
negations that helps to work JerryScript well with custom boolean types.

JerryScript-DCO-1.0-Signed-off-by: Roland Takacs rtakacs.uszeged@partner.samsung.com

Because these feature guards don't have their counterpart options in cmake, they
seem to be less tested. This commit makes them build-tested at least.

JerryScript-DCO-1.0-Signed-off-by: Akos Kiss akiss@inf.u-szeged.hu

Added tests/jerry/unusual.js to test corner cases
Added tests/jerry-test-suite/11/11.08/11.08.06/11.08.06-008.js (a new test of instanceof)
Added new floatingpoint test case to tests/jerry/arithmetics-2.js
Added new test case to tests/jerry/arithmetics-bignums.js

JerryScript-DCO-1.0-Signed-off-by: Csaba Repasi repasics@inf.u-szeged.hu

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

There was a typo in a regression test name, referencing to a different pull request rather than the issue it fixes.

JerryScript-DCO-1.0-Signed-off-by: Daniel Balla dballa@inf.u-szeged.hu

With the change the test file truly checks the corresponding part of the standard (ECMAScript v5, 15.2.3.4.1).

JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik frobert@inf.u-szeged.hu

JerryScript-DCO-1.0-Signed-off-by: Daniel Balla dballa@inf.u-szeged.hu