Fix illegal access errors

Merge pull request #11 from Roenke/fix-illegal-access-errors

Fix illegal access errors when trace expression evaluating

Fix issues with evaluate expression

Merge pull request #10 from Roenke/fix-compile-issues-on-idea

Fix compile issues on idea project

Add a few of UI improvements

• Draw mapping lines for before-after values
• Scroll tree to linked values
• Add kotlin support

Bugfixes

• Fix bug in flatMap to primitives
• Resolve trace for sorted call correctly
• Support termination calls with void as return type

Correct traces for primitive values

• Store primitive values by value (not wrapper)
• Render primitive values as "type = value" in views

Hot fixes for initial

Fix a few of bugs.

Initial release

A simple prototype of the stream debugger plugin.
Main feature: tracing a stream call and visualize collected data