Resolve "Unhandled exception in event loop when axis are disabled"

Closes #4115 (closed)

Prevent execution of code from the typing helper, when checking if a property is callable.

At the same time it fixes the "unhandled exception" seen in #4115 (closed) in case executing the property was producing an exception.

The proposed fix leverages safe_getattr from jedi:

>>> from jedi.inference.compiled.access import safe_getattr
>>> class A:
...   @property
...   def x(self):
...     print("oops")
... 
>>> a=A()
>>> safe_getattr(a, "x")
<property object at 0x7f527177c860>
>>> hasattr(a, "x")
oops
True