tests: add indent test for graphql (#2459)

Issue #1981

tests/indent/graphql/issue-1981.graphql

@@ -0,0 +1,6 @@
+query Me {
+  me {
+    id
+    fullName
+  }
+}

tests/indent/graphql_spec.lua

@@ -0,0 +1,19 @@
+local Runner = require("tests.indent.common").Runner
+--local XFAIL = require("tests.indent.common").XFAIL
+
+local run = Runner:new(it, "tests/indent/graphql", {
+  tabstop = 2,
+  shiftwidth = 2,
+  softtabstop = 0,
+  expandtab = true,
+})
+
+describe("indent Lua:", function()
+  describe("whole file:", function()
+    run:whole_file(".", {
+      expected_failures = {},
+    })
+  end)
+
+  describe("new line:", function() end)
+end)