CA2012 change severity from Hidden to Info

[carlossanlop]

As requested by @stephentoub, this rule was initially merged with severity Hidden and we want it to be Info instead.

[carlossanlop]

I am not entirely sure these changes are the correct ones, I think I am missing some other change(s). Can you please help me, @mavasani @Evangelink ? I am getting this build error:

Build FAILED.

Microsoft.NetCore.Analyzers\Tasks\UseValueTasksCorrectly.cs(27,103): error RS2001: Rule 'CA2012' has a changed 'Category' or 'Severity' from the last release. Either revert the update(s) in source 
 or add a new up-to-date entry to unshipped release file. [D:\roslyn-analyzers\src\NetAnalyzers\Core\Microsoft.CodeAnalysis.NetAnalyzers.csproj]
Microsoft.NetCore.Analyzers\Tasks\UseValueTasksCorrectly.cs(36,106): error RS2001: Rule 'CA2012' has a changed 'Category' or 'Severity' from the last release. Either revert the update(s) in source 
 or add a new up-to-date entry to unshipped release file. [D:\roslyn-analyzers\src\NetAnalyzers\Core\Microsoft.CodeAnalysis.NetAnalyzers.csproj]
Microsoft.NetCore.Analyzers\Tasks\UseValueTasksCorrectly.cs(45,113): error RS2001: Rule 'CA2012' has a changed 'Category' or 'Severity' from the last release. Either revert the update(s) in source 
 or add a new up-to-date entry to unshipped release file. [D:\roslyn-analyzers\src\NetAnalyzers\Core\Microsoft.CodeAnalysis.NetAnalyzers.csproj]
Microsoft.NetCore.Analyzers\Tasks\UseValueTasksCorrectly.cs(54,121): error RS2001: Rule 'CA2012' has a changed 'Category' or 'Severity' from the last release. Either revert the update(s) in source 
 or add a new up-to-date entry to unshipped release file. [D:\roslyn-analyzers\src\NetAnalyzers\Core\Microsoft.CodeAnalysis.NetAnalyzers.csproj]
AnalyzerReleases.Unshipped.md(51,1): error RS2007: Analyzer release file 'AnalyzerReleases.Unshipped.md' has an invalid 'Changed' entry without a prior shipped release for the rule 'CA2012'. Inste 
ad, add a separate 'Changed' entry for the rule in unshipped release file. [D:\roslyn-analyzers\src\NetAnalyzers\Core\Microsoft.CodeAnalysis.NetAnalyzers.csproj]
    0 Warning(s)
    5 Error(s)

[mavasani]

@carlossanlop Seems like the two files changed in this PR were manual edits, which should not be done. Instead, please just update the severity in UseValueTasksCorrectly.cs, which should offer a code fix to fixup AnalyzerReleases.unshipped.md. Also, you don't need to update any other files.

[codecov]

Codecov Report

Merging #3948 into master will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master    #3948   +/-   ##
=======================================
  Coverage   95.64%   95.64%           
=======================================
  Files        1153     1153           
  Lines      254473   254473           
  Branches    15245    15245           
=======================================
+ Hits       243395   243399    +4     
+ Misses       9140     9136    -4     
  Partials     1938     1938