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Improve typer traces #14270

Merged

odersky merged 1 commit into scala:master from dwijnand:improve-typer-trace

Jan 21, 2022

Commits on Jan 15, 2022

Improve typer traces

1. Drop traceIndented from isSubType, which calls recur so it was just
   doubling the lines

2. Replace newlines with spaces, in doTrace and traceIndented, as
   they're meant to be single lines.  For example ErrorType and
   MatchType have toText that are multi-line and mess up the output.

3. Change ExplainingTypeComparer#addConstraint to use show like the
   other methods.

dwijnand committed Jan 15, 2022