Adjust for refactoring of precedence group declarations

Author: DougGregor

Sources/SwiftOperators/OperatorTable+Semantics.swift

@@ -73,12 +73,7 @@ extension Operator {
 
     name = syntax.identifier.text
 
-    if let operatorSyntax = syntax.operatorPrecedenceAndTypes?
-        .precedenceGroupAndDesignatedTypes {
-      precedenceGroup = operatorSyntax.firstToken?.text
-    } else {
-      precedenceGroup = nil
-    }
+    precedenceGroup = syntax.operatorPrecedenceAndTypes?.precedenceGroup.text
   }
 }
 

Sources/SwiftOperators/SyntaxSynthesis.swift

@@ -25,9 +25,8 @@ extension Operator {
     let precedenceGroupSyntax = precedenceGroup.map { groupName in
       OperatorPrecedenceAndTypesSyntax(
         colon: .colonToken(),
-        precedenceGroupAndDesignatedTypes: IdentifierListSyntax(
-          [.identifier(groupName, leadingTrivia: .space)]
-        )
+        precedenceGroup: .identifier(groupName, leadingTrivia: .space),
+        designatedTypes: DesignatedTypeListSyntax([])
       )
     }