Put back the closure synthesis in __cmp

Author: grynspan

Sources/TestingMacros/Support/ConditionArgumentParsing.swift

@@ -429,7 +429,15 @@ private final class _ContextInserter<C, M>: SyntaxRewriter where C: MacroExpansi
        op == "==" || op == "!=" || op == "===" || op == "!==" {
 
       return _rewrite(
-        DeclReferenceExprSyntax(baseName: .binaryOperator(op)),
+        ClosureExprSyntax {
+          InfixOperatorExprSyntax(
+            leftOperand: DeclReferenceExprSyntax(baseName: .dollarIdentifier("$0"))
+              .with(\.trailingTrivia, .space),
+            operator: BinaryOperatorExprSyntax(text: op),
+            rightOperand: DeclReferenceExprSyntax(baseName: .dollarIdentifier("$1"))
+              .with(\.leadingTrivia, .space)
+          )
+        },
         originalWas: node,
         calling: .identifier("__cmp"),
         passing: [