Merge tests into a larger file (part 5 of ∞) (#9368)

* merge magics

* merge metatype tests

* merge method tests

* merge objects tests

* change `import future` to `import sugar`

Nim in Action tests are left with `import future`, to ensure compatibility.

* merge overload tests

* merge proc tests

* merge procvar tests

* merge range tests

* merge seq tests

* merge sets tests

* remove wrong assert from `tsets3`

* fix `jsTests`

* better fix

tests/proc/tproc.nim

@@ -0,0 +1,31 @@
+discard """
+  output: '''
+Hello
+1
+'''
+"""
+
+
+block t8357:
+  type T = ref int
+
+  let r = new(string)
+  r[] = "Hello"
+  echo r[]
+
+
+block t8683:
+  proc foo[T](bar: proc (x, y: T): int = system.cmp, baz: int) =
+    echo "1"
+  proc foo[T](bar: proc (x, y: T): int = system.cmp) =
+    echo "2"
+
+  foo[int](baz = 5)
+
+
+block tnestprc:
+  proc Add3(x: int): int =
+    proc add(x, y: int): int {.noconv.} =
+      result = x + y
+    result = add(x, 3)
+  doAssert Add3(7) == 10