disable talloc2 on 32 bits (#10656)

tests/system/talloc2.nim

@@ -1,16 +1,15 @@
 discard """
 disabled: "windows"
 joinable: false
+disabled: 32bit
 """
-
+# no point to test this on system with smaller address space
 # appveyor is "out of memory"
 
-when sizeof(int) >= 8:
-  # no point to test this on system with smaller address space
-  const
+const
   nmax = 2*1024*1024*1024
 
-  proc test(n: int) =
+proc test(n: int) =
   var a = alloc0(9999)
   var t = cast[ptr UncheckedArray[int8]](alloc(n))
   var b = alloc0(9999)
@@ -22,9 +21,9 @@ when sizeof(int) >= 8:
   dealloc(t)
   dealloc(b)
 
-  # allocator adds 48 bytes to BigChunk
-  # BigChunk allocator edges at 2^n * (1 - s) for s = [1..32]/64
-  proc test2(n: int) =
+# allocator adds 48 bytes to BigChunk
+# BigChunk allocator edges at 2^n * (1 - s) for s = [1..32]/64
+proc test2(n: int) =
   let d = n div 256  # cover edges and more
   for i in countdown(128,1):
     for j in [-4096, -64, -49, -48, -47, -32, 0, 4096]:
@@ -33,7 +32,7 @@ when sizeof(int) >= 8:
         test(b)
         #echo b, ": ", getTotalMem(), " ", getOccupiedMem(), " ", getFreeMem()
 
-  proc test3 =
+proc test3 =
   var n = 1
   while n <= nmax:
     test2(n)
@@ -43,4 +42,4 @@ when sizeof(int) >= 8:
     test2(n)
     n = n div 2
 
-  test3()
+test3()