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Refactoring: remove the "monadic_minus" flag from runparse_node.
Rather than setting a flag and behaving differently on the following iteration, the code now handles the monadic minus in a single iteration. This makes the logic easier to understand (fewer possible states).

Update the expected testlog with recently added test output

Add a comment explaining why init.h is included

Fix a build break when precompiled headers aren't used.

Fix a build break when precompiled headers aren't used.

Fix a regression where the WM_CHECKQUEUE message was posted to the wrong HWND.
The timers still worked but the execution of the events was delayed to the point where programs didn't work correctly.
Rather than duplicate the correct logic, I made CMainFrame->PostCheckQueueMessage() public.
Having it be private contributed to this regression.

Strip trailing whitespace

Add a test case for when the array origin's number isn't given {1 2}@
Also add some comments and TRACEINSTRUCTION.

Add some mismatched curly brace tests to RUNPARSE.

Cleanup: Remove a local variable that wasn't used (vestige from an earlier refactoring)