test case haul for old generic/template/macro issues (#22564)

* test case haul for old generic/template/macro issues

closes #12582, closes #19552, closes #2465, closes #4596, closes #15246,
closes #12683, closes #7889, closes #4547, closes #12415, closes #2002,
closes #1771, closes #5121

The test for #5648 is also moved into its own test
from `types/tissues_types` due to not being joinable.

* fix template gensym test

tests/types/t5648.nim

@@ -0,0 +1,32 @@
+discard """
+  output: '''
+ptr Foo
+'''
+joinable: false
+"""
+# not joinable because it causes out of memory with --gc:boehm
+
+# issue #5648
+
+import typetraits
+
+type Foo = object
+  bar: int
+
+proc main() =
+  var f = create(Foo)
+  f.bar = 3
+  echo f.type.name
+
+  discard realloc(f, 0)
+
+  var g = Foo()
+  g.bar = 3
+
+var
+  mainPtr = cast[pointer](main)
+  mainFromPtr = cast[typeof(main)](mainPtr)
+
+doAssert main == mainFromPtr
+
+main()

tests/types/tissues_types.nim

@@ -3,7 +3,6 @@ discard """
 true
 true
 true
-ptr Foo
 (member: "hello world")
 (member: 123.456)
 (member: "hello world", x: ...)
@@ -11,10 +10,7 @@ ptr Foo
 0
 false
 '''
-joinable: false
 """
-# not joinable because it causes out of memory with --gc:boehm
-import typetraits
 
 block t1252:
   echo float32 isnot float64
@@ -29,28 +25,6 @@ block t5640:
 
   var v = vec2([0.0'f32, 0.0'f32])
 
-block t5648:
-  type Foo = object
-    bar: int
-
-  proc main() =
-    var f = create(Foo)
-    f.bar = 3
-    echo f.type.name
-
-    discard realloc(f, 0)
-
-    var g = Foo()
-    g.bar = 3
-
-  var
-    mainPtr = cast[pointer](main)
-    mainFromPtr = cast[typeof(main)](mainPtr)
-
-  doAssert main == mainFromPtr
-
-  main()
-
 block t7581:
   discard int -1
 
@@ -107,3 +81,18 @@ block:
 
 var f1: Foo
 echo f1.bar
+
+import macros
+
+block: # issue #12582
+  macro foo(T: type): type =
+    nnkBracketExpr.newTree(bindSym "array", newLit 1, T)
+  var
+    _: foo(int) # fine
+  type
+    Foo = object
+      x: foo(int) # fine
+    Bar = ref object
+      x: foo(int) # error
+  let b = Bar()
+  let b2 = Bar(x: [123])