lua: skip top-level guard when chunk has no top-level return; loadstring sees user globals

lib/lua/scoreboard.json

@@ -1,8 +1,8 @@
 {
   "totals": {
     "pass": 1,
-    "fail": 12,
-    "timeout": 3,
+    "fail": 11,
+    "timeout": 4,
     "skip": 8,
     "total": 24,
     "runnable": 16,
@@ -15,16 +15,12 @@
     ],
     [
       "timeout",
-      3
+      4
     ],
     [
       "other: Unhandled exception: \\\"Unhandled exception: \\\\\\\"lua: attempt to call non-functio",
       2
     ],
-    [
-      "other: Unhandled exception: \\\"Unhandled exception: \\\\\\\"lua: module 'C' not found\\\\\\\"\\",
-      1
-    ],
     [
       "undefined symbol: fat\\",
       1
@@ -49,9 +45,9 @@
     },
     {
       "name": "attrib.lua",
-      "status": "fail",
-      "reason": "other: Unhandled exception: \\\"Unhandled exception: \\\\\\\"lua: module 'C' not found\\\\\\\"\\",
-      "ms": 6525
+      "status": "timeout",
+      "reason": "per-test timeout",
+      "ms": 8008
     },
     {
       "name": "big.lua",
@@ -63,7 +59,7 @@
       "name": "calls.lua",
       "status": "fail",
       "reason": "undefined symbol: fat\\",
-      "ms": 5092
+      "ms": 6184
     },
     {
       "name": "checktable.lua",
@@ -75,7 +71,7 @@
       "name": "closure.lua",
       "status": "timeout",
       "reason": "per-test timeout",
-      "ms": 8006
+      "ms": 8001
     },
     {
       "name": "code.lua",
@@ -87,7 +83,7 @@
       "name": "constructs.lua",
       "status": "fail",
       "reason": "other: Unhandled exception: \\\"Unhandled exception: \\\\\\\"lua: attempt to compare incompat",
-      "ms": 6780
+      "ms": 7870
     },
     {
       "name": "db.lua",
@@ -99,13 +95,13 @@
       "name": "errors.lua",
       "status": "fail",
       "reason": "other: Unhandled exception: \\\"Unhandled exception: \\\\\\\"assertion failed!\\\\\\\"\\",
-      "ms": 3208
+      "ms": 3808
     },
     {
       "name": "events.lua",
       "status": "fail",
       "reason": "other: Unhandled exception: \\\"Unhandled exception: \\\\\\\"assertion failed!\\\\\\\"\\",
-      "ms": 7307
+      "ms": 7990
     },
     {
       "name": "files.lua",
@@ -123,13 +119,13 @@
       "name": "literals.lua",
       "status": "fail",
       "reason": "other: Unhandled exception: \\\"Unhandled exception: \\\\\\\"assertion failed!\\\\\\\"\\",
-      "ms": 1816
+      "ms": 2085
     },
     {
       "name": "locals.lua",
       "status": "fail",
       "reason": "other: Unhandled exception: \\\"Unhandled exception: \\\\\\\"lua: attempt to call non-functio",
-      "ms": 1627
+      "ms": 1811
     },
     {
       "name": "main.lua",
@@ -141,43 +137,43 @@
       "name": "math.lua",
       "status": "fail",
       "reason": "other: Unhandled exception: \\\"Unhandled exception: \\\\\\\"lua: attempt to call non-functio",
-      "ms": 4156
+      "ms": 4436
     },
     {
       "name": "nextvar.lua",
       "status": "fail",
       "reason": "other: Unhandled exception: \\\"Unhandled exception: \\\\\\\"assertion failed!\\\\\\\"\\",
-      "ms": 7064
+      "ms": 7759
     },
     {
       "name": "pm.lua",
       "status": "fail",
       "reason": "other: Unhandled exception: \\\"Unhandled exception: \\\\\\\"assertion failed!\\\\\\\"\\",
-      "ms": 5813
+      "ms": 6473
     },
     {
       "name": "sort.lua",
       "status": "timeout",
       "reason": "per-test timeout",
-      "ms": 8008
+      "ms": 8007
     },
     {
       "name": "strings.lua",
       "status": "fail",
       "reason": "other: Unhandled exception: \\\"Unhandled exception: \\\\\\\"assertion failed!\\\\\\\"\\",
-      "ms": 3987
+      "ms": 4366
     },
     {
       "name": "vararg.lua",
       "status": "fail",
       "reason": "other: Unhandled exception: \\\"Unhandled exception: \\\\\\\"assertion failed!\\\\\\\"\\",
-      "ms": 2243
+      "ms": 2422
     },
     {
       "name": "verybig.lua",
       "status": "pass",
       "reason": "",
-      "ms": 1085
+      "ms": 1077
     }
   ]
 }