Added a crutch in tracing method to force python to stop
even if it was in resuming state. And another crunch to prevent
it from optimizing too cleverly.

Small code refactoring and test added

PyCidrDebuggerTask builds session for running tests in mixed mode and
PyCidrDebuggerTest contains UnitTests for python/c++ mixed mode debugger.

Refactored code, now most of the mixed debugger code is located in
com.jetbrains.cidr.python.debugger. Python-cidr dependency
is removed.

This commit contains refactoring and exception handling of related to
mixed stack construction. The new class was created for pseudo-python
frames got from gdb in order not to confuse with CidrStackFrame.

Follows-up: IDEA-CR-23277 CPP-5797: mixdebug: mixed stack representation during pause in native code

Refactored code to work with Promises instead of callbacks,
fixed minor blots

Added checkbox and text field to "edit configuration" panel.
Step into now works with functions that take no args as well.

MixedCidrExecutionStack adds logic while computing stack frames and gets
all required data from gdb.

CidrDebugProcess is theoretically ready to implement some
NativeDebugProcess interface in order to make python debugger
independent from cidr repo. The main idea of that interface is to
provide some methods with callbacks to establish some kind of
communication between driver's queue and debug process that is
being developed.

Created basic classes for mixed-mode debugging, now PyDebugRunner
launches mixed-mode instead of python-mode all the time. This behavior
will be changed later

- Show Edit/Copy/Remove Configuration action only in popup

Otherwise, we (quite confusingly) successfully find them while running
the project from IDEA, yet fail to do so in actually built IDEs, since
LocalTask is now part of the platform, and plugin classloader can't
locate necessary icons there.

after adding IdeaPluginRegistrationIndex we don't need them

(a7e69bec))

- Start configurations in the order they are presented in the tree.

Keep the method, since it is used in 3-party plugins.

Follow-up to aaaca8de

Added the same highlighting for '@' as for the name.

- Make Run Dashboard labels consistent

IDEA-175313 Gradle: running classes using Application Run Configuration fails with error in the initialization script

(cherry picked from commit 2e281cdd)

Update PyCallExpressionHelper to support a case when callee resolves to call expression and this call expression returns class with `__call__`.