test(tiger): import upstream tests

tests/indent/tiger/classes.tig

@@ -0,0 +1,14 @@
+class A {
+  var a := 12
+
+  method method() : int = 1
+}
+
+type B = class extends A {
+  var b := 27
+
+  method another_method() = (
+    print("called");
+    self.b + self.method()
+  )
+}

tests/indent/tiger/control-flow.tig

@@ -0,0 +1,22 @@
+(
+  if
+    12
+  then
+    27
+  else
+    42
+  ;
+
+  for
+    i := 12
+  to
+    27
+  do
+    42
+  ;
+
+  while
+    0
+  do
+    break
+)

tests/indent/tiger/functions.tig

@@ -0,0 +1,14 @@
+primitive long_parameter_list(
+  a: int,
+  b: string,
+  c: type
+)
+
+function f() =
+  (
+    long_parameter_list(
+      1,
+      "2",
+      nil
+    )
+  )

tests/indent/tiger/groupings.tig

@@ -0,0 +1,10 @@
+let
+  var a := 42
+in
+  (
+    12;
+    27;
+    42
+  );
+  a
+end

tests/indent/tiger/values-and-expressions.tig

@@ -0,0 +1,30 @@
+let
+  type array_of_int = array of int
+
+  type record = {
+    a: int,
+    b: string,
+    c: type
+  }
+
+  var a :=
+    "a string"
+in
+  array[
+    12
+  ]
+  ;
+
+  array_of_int[
+    27
+  ]
+  of
+    42
+  ;
+
+  record {
+    a = 1,
+    b = "2",
+    c = nil
+  }
+end