Gather is trying to run analysis on silent variable fetching executions from interactive window

[IanMatthewHuff]

Steps:

1. Run a few cell in the interactive window (running under the debugger)
2. Open the variable explorer in the interactive window
3. Look in the logging output

Couldn't analyze block _rwho_ls = %who_ls
print(_rwho_ls) , error encountered, Error: Parse error on line 1:
_rwho_ls = %who_lsprint(rwho
-----------^
Expecting '(', 'NAME', '*', 'ELLIPSIS', 'lambda', 'not', '+', '-', '~', '[', '{', 'NUMBER', 'IMAGINARY', 'None', 'True', 'False', 'STRING', 'BYTES', 'yield', got '%'
at _0x2e4359._0x55d591 (webpack:///./src/python3.js?:1:117001)
at _0x2e4359._0x1a1a86 [as parse] (webpack:///./src/python3.js?:1:119659)
at Object.eval [as parse] (webpack:///./src/python3.js?:1:136526)
at Object.parse (webpack:///./src/python-parser.ts?:1:3285)
at _0x292084.eval [as add] (webpack:///./src/program-builder.ts?:1:5091)
at _0xa381ec.eval [as addExecutionToLog] (webpack:///./src/log-slicer.ts?:1:4037)
at _0xa381ec.eval [as logExecution] (webpack:///./src/log-slicer.ts?:1:3922)
at GatherProvider.logExecution (/Users/ianhuff/.vscode-insiders/extensions/ms-python.gather-2021.1.0/out/extension.js:29644:43) , not adding to programs.
/Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/out/bootstrap-fork.js:5

Not sure if this is causing an actual issue, but seems like something we can clean up. the who_ls magic is for fetching variables should be a silent execution. Might be that we are not sending this into the Extension API that gather is watching marked correctly.

[IanMatthewHuff]

Validated. I don't see the messages anymore.