fix #406 dont cache infer when not deep

Author: sumneko

Diff for: changelog.md

@@ -1,5 +1,8 @@
 # changelog
 
+## 1.16.2
+* `FIX` [#406](https://github.com/sumneko/lua-language-server/issues/406)
+
 ## 1.16.1
 `2021-2-22`
 * `FIX` signature: parameters may be misplaced

Diff for: script/parser/guide.lua

@@ -2937,6 +2937,11 @@ end
 
 function m.getRefCache(status, obj, mode)
     local isDeep = status.deep
+    if mode == 'infer' then
+        if not isDeep then
+            return nil, nil
+        end
+    end
     local globalCache = status.interface.cache and status.interface.cache() or {}
     if m.isGlobal(obj) then
         obj = m.getKeyName(obj)

Diff for: test/hover/init.lua

@@ -439,7 +439,7 @@ t[any] = any
 ]]
 [[
 local t: {
-    [integer]: integer = 1,
+    [number]: integer = 1,
 }
 ]]
 
@@ -1526,3 +1526,15 @@ local t: {
     a: integer = 1,
 }
 ]]
+
+TEST [[
+---@return number
+local function f() end
+local <?u?> = f()
+print(u.x)
+]]
+[[
+local u: number {
+    x: any,
+}
+]]