[SR-11135] Swift CI: (R.swift) Swift Source Compatibility Suite (master[-debug])

[xedin]

Previous ID	SR-11135
Radar	rdar://problem/53085717
Original Reporter	@xedin
Type	Bug
Status	Resolved
Resolution	Done

Additional Detail from JIRA

Votes	0
Component/s	Package Manager
Labels	Bug
Assignee	None
Priority	Medium

md5: 23cb9ae75bc3082e3568c4a13550029d

is duplicated by:

• SR-11136 Swift CI: (RxDataSources) Swift Source Compatibility Suite (master[-debug])

Issue Description:

Jenkins URL: https://ci.swift.org/job/swift-master-source-compat-suite/3871

/Users/buildnode/jenkins/workspace-private/swift-master-source-compat-suite/project_cache/R.swift/Sources/RswiftCore/ResourceTypes/Xcodeproj.swift:28:20: error: value of type 'ProjectFileError' has no member 'description'
        warn(error.description)
             ~~~~~ ^~~~~~~~~~~

Starting happening in build #3865 with following changes:

    AST: add a workaround for VS2017 
    Sort `DeclAttributeAndRange`s Deterministically
    AST: Remove ObjectLiteralExpr::{get,set}SemanticExpr()
    Replace all 9999 availability in non-stdlib tests. (#26109)
    Replace stdlib and test/stdlib 9999 availability. (#26108)

[beccadax]

Between the previous job run and this one, the version of the XcodeEdit dependency suddenly changed from 2.4.1 to 2.7.1 in defiance of the Package.resolved file, which caused R.swift to fail to build. RxDataSources also had its RxSwift dependency change versions from 4.0.0 to 4.5.0, despite Package.resolved specifying 4.0.0.

Possibly related to #2230 which was checked in between those two runs and changes how Package.resolved files are interpreted. @aciidb0mb3r

[aciidgh]

Reverting my commit:

5.1 #2240
master #2239

[beccadax]

Reverting the SwiftPM commit seems to have resolved this issue. We've also reverted the XFAILs in the source compatibility suite.