fixes #14112, tests for #12892, #12671, #11697 (#14125)

tests/js/t11697.nim

@@ -0,0 +1,5 @@
+import tables
+
+var xs: Table[int, Table[int, int]]
+
+doAssertRaises(KeyError): reset xs[0]

tests/js/temptyseq.nim

@@ -0,0 +1,8 @@
+# #12671
+
+proc foo =
+  var x: seq[int]
+  doAssertRaises(IndexError):
+    inc x[0]
+
+foo()

tests/stdlib/tunidecode.nim

@@ -5,6 +5,8 @@ discard """
 
 import unidecode
 
+import std/unidecode # #14112
+
 loadUnidecodeTable("lib/pure/unidecode/unidecode.dat")
 
 #assert unidecode("\x53\x17\x4E\xB0") == "Bei Jing"

tests/tuples/t12892.nim

@@ -0,0 +1,8 @@
+discard """
+  disabled: i386
+"""
+
+template works[T](): auto = T.high - 1
+template breaks[T](): auto = (T.high - 1, true)
+doAssert $works[uint]() == "18446744073709551614"
+doAssert $breaks[uint]() == "(18446744073709551614, true)"