QNTM-4488: Fix AST creation for partial multi-outport custom nodes

[aparajit-pratap]

Purpose

Fix for incorrect warning displayed with partial multi-output custom node when compiled to Dictionary.

Previously the compiled AST generated for such a node was:

varx["out1"] = varx_out1;
varx["out2"] = varx_out2;
varx["out3"] = varx_out3;

This should be compiled to:

varx = Dictionary.ByKeysValues(["out1", "out2", "out3"], [varx_out1, varx_out2, varx_out3]);

JIRA: https://jira.autodesk.com/browse/QNTM-4488

Declarations

Check these if you believe they are true

• The code base is in a better state after this PR
• Is documented according to the standards
• The level of testing this PR includes is appropriate
• User facing strings, if any, are extracted into *.resx files
• All tests pass using the self-service CI.
• Snapshot of UI changes, if any.
• Changes to the API follow Semantic Versioning, and are documented in the API Changes document.

Reviewers

@mjkkirschner

FYIs

@kronz @jnealb

[mjkkirschner]

@aparajit-pratap nice! will this magically fix this as well (I am guessing no 😉 )
#8912

[jnealb]

@aparajit-pratap @mjkkirschner @smangarole Should the title etc of QNTM-4488 be updated?

[aparajit-pratap]

@jnealb I've updated the JIRA title.