retain postfix node in type section typed AST (#23096)

fixes #22933

compiler/semstmts.nim

@@ -1259,6 +1259,9 @@ proc typeSectionTypeName(c: PContext; n: PNode): PNode =
     result = n[0]
   else:
     result = n
+  if result.kind == nkPostfix:
+    if result.len != 2: illFormedAst(n, c.config)
+    result = result[1]
   if result.kind != nkSym: illFormedAst(n, c.config)
 
 proc typeDefLeftSidePass(c: PContext, typeSection: PNode, i: int) =
@@ -1326,9 +1329,15 @@ proc typeDefLeftSidePass(c: PContext, typeSection: PNode, i: int) =
     elif s.owner == nil: s.owner = getCurrOwner(c)
 
   if name.kind == nkPragmaExpr:
-    typeDef[0][0] = newSymNode(s)
+    if name[0].kind == nkPostfix:
+      typeDef[0][0][1] = newSymNode(s)
+    else:
+      typeDef[0][0] = newSymNode(s)
   else:
-    typeDef[0] = newSymNode(s)
+    if name.kind == nkPostfix:
+      typeDef[0][1] = newSymNode(s)
+    else:
+      typeDef[0] = newSymNode(s)
 
 proc typeSectionLeftSidePass(c: PContext, n: PNode) =
   # process the symbols on the left side for the whole type section, before
@@ -1538,8 +1547,15 @@ proc typeSectionRightSidePass(c: PContext, n: PNode) =
       of nkSym: obj.ast[0] = symNode
       of nkPragmaExpr:
         obj.ast[0] = a[0].shallowCopy
-        obj.ast[0][0] = symNode
+        if a[0][0].kind == nkPostfix:
+          obj.ast[0][0] = a[0][0].shallowCopy
+          obj.ast[0][0][1] = symNode
+        else:
+          obj.ast[0][0] = symNode
         obj.ast[0][1] = a[0][1]
+      of nkPostfix:
+        obj.ast[0] = a[0].shallowCopy
+        obj.ast[0][1] = symNode
       else: assert(false)
       obj.ast[1] = a[1]
       obj.ast[2] = a[2][0]

testament/important_packages.nim

@@ -97,7 +97,8 @@ pkg "memo"
 pkg "msgpack4nim", "nim c -r tests/test_spec.nim"
 pkg "nake", "nim c nakefile.nim"
 pkg "neo", "nim c -d:blas=openblas --mm:refc tests/all.nim", url = "https://github.com/nim-lang/neo"
-pkg "nesm", "nimble tests", "https://github.com/nim-lang/NESM", useHead = true
+pkg "nesm", "nimble tests", "https://github.com/nim-lang/NESM", useHead = true, allowFailure = true
+  # inactive, tests not adapted to #23096
 pkg "netty"
 pkg "nico", allowFailure = true
 pkg "nicy", "nim c -r src/nicy.nim"

tests/macros/tastrepr.nim

@@ -11,6 +11,8 @@ for i, (x, y) in pairs(data):
 var
   a = 1
   b = 2
+type
+  A* = object
 
 var data = @[(1, "one"), (2, "two")]
 for (i, d) in pairs(data):
@@ -20,6 +22,8 @@ for i, d in pairs(data):
 for i, (x, y) in pairs(data):
   discard
 var (a, b) = (1, 2)
+type
+  A* = object
 '''
 """
 
@@ -44,3 +48,4 @@ echoTypedAndUntypedRepr:
   for i, (x,y) in pairs(data):
     discard
   var (a,b) = (1,2)
+  type A* = object # issue #22933

tests/macros/tgetimpl.nim

@@ -75,7 +75,9 @@ assert: check_gen_proc(len(a)) == (false, true)
 macro check(x: type): untyped =
   let z = getType(x)
   let y = getImpl(z[1])  
-  let sym = if y[0].kind == nnkSym: y[0] else: y[0][0]
+  var sym = y[0]
+  if sym.kind == nnkPragmaExpr: sym = sym[0]
+  if sym.kind == nnkPostfix: sym = sym[1]
   expectKind(z[1], nnkSym)
   expectKind(sym, nnkSym)
   expectKind(y[2], nnkObjectTy)