some test cleanups & category reorganization (#22010)

* clean up some test categories

* mention exact slice issue

* magics into system

* move trangechecks into overflow

* move tmemory to system

* try fix CI

* try fix CI

* final CI fix

tests/template/tidentconcatenations.nim

@@ -0,0 +1,31 @@
+type
+  Hash*[bits: static[int]] = object
+    data*: array[bits div 8, uint8]
+
+{.emit: """
+
+void sha_256(void* input, int input_len, void* output, int output_len) {}
+void sha_512(void* input, int input_len, void* output, int output_len) {}
+
+void keccak_256(void* input, int input_len, void* output, int output_len) {}
+void keccak_512(void* input, int input_len, void* output, int output_len) {}
+
+""".}
+
+template defineKeccak(bits: untyped) =
+  proc `extKeccak bits`(output: pointer, outSize: csize_t, input: pointer, inputSize: csize_t) {.nodecl, importc: "keccak_" & astToStr(bits).}
+
+template defineSha(bits: static[int]) =
+  proc `extSha bits`(output: pointer, outSize: csize_t, input: pointer, inputSize: csize_t) {.nodecl, importc: "sha_" & astToStr(bits).}
+
+template defineHashProcs(bits) =
+  defineSha(bits)
+  defineKeccak(bits)
+
+defineHashProcs(256)
+defineHashProcs(512)
+
+extSha256(nil, 0, nil, 0)
+extSha512(nil, 0, nil, 0)
+extKeccak256(nil, 0, nil, 0)
+extKeccak512(nil, 0, nil, 0)

tests/template/twrongmapit.nim

@@ -1,9 +1,6 @@
 discard """
-  disabled: true
-  output: "####"
+  joinable: false
 """
-# unfortunately our tester doesn't support multiple lines of compiler
-# error messages yet...
 
 # bug #1562
 type Foo* {.pure, final.} = object
@@ -30,4 +27,4 @@ import sequtils
 
 (var i = @[""];i).applyIt(it)
 # now works:
-echo "##", i[0], "##"
+doAssert i[0] == ""