Formatter should not remove all whitespaces between invalid tokens

[lochana-chathura]

Description:
$subject as the formatting would make the code different than it was before.

Consider the following samples.
Original Code:

After Formatting:

As you can see after formatting instead of where keyword and i identifier now we have wherei identifier.
Basically removing all whitespaces makes the code tokenized differently than it was before.

Another Sample (click to expand)

Original Code:

After Formatting:

Code Snippets (click to expand)

public function main() {
    var c = from var i in 0 ... 5
        select i
        where i % 2 != 0;
}

public function main() {
    map<string> v = {};
    match v {
        {...var c, var c} => {
            io:println(c);
        }
        _ => {

        }
    }
}

Affected Versions:
2201.0.0

[github-actions]

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      - Reason/EngineeringMistake - The issue occurred due to a mistake made in the past.
      - Reason/Regression - The issue has introduced a regression.
      - Reason/MultipleComponentInteraction - Issue occured due to interactions in multiple components.
      - Reason/Complex - Issue occurred due to complex scenario.
      - Reason/Invalid - Issue is invalid.
      - Reason/Other - None of the above cases.