Support thread-local variables declared inside procs; fixes #7565

tests/threads/tthreadvars.nim

@@ -0,0 +1,78 @@
+discard """
+output: '''
+10
+1111
+1222
+3030303
+3060606
+6060606
+6121212
+3030903
+3061206
+3031503
+3061806
+5050505
+5101010
+'''
+"""
+
+import typetraits
+
+var tls1 {.threadvar.}: int
+var g0: int
+var g1 {.global.}: int
+
+proc customInc(x: var int, delta: int) =
+  x += delta
+
+customInc(tls1, 10)
+echo tls1
+
+proc nonGenericProc: int =
+  var local: int
+  var nonGenericTls {.threadvar.}: int
+  var nonGenericGlobal {.global.}: int
+  var nonGenericMixedPragmas {.global, threadvar.}: int
+
+  customInc local, 1000
+  customInc nonGenericTls, 1
+  customInc nonGenericGlobal, 10
+  customInc nonGenericMixedPragmas, 100
+
+  return local + nonGenericTls + nonGenericGlobal + nonGenericMixedPragmas
+
+proc genericProc(T: typedesc): int =
+  var local: int
+  var genericTls {.threadvar.}: int
+  var genericGlobal {.global.}: int
+  var genericMixedPragmas {.global, threadvar.}: int
+
+  customInc local, T.name.len * 1000000
+  customInc genericTls, T.name.len * 1
+  customInc genericGlobal, T.name.len * 100
+  customInc genericMixedPragmas, T.name.len * 10000
+
+  return local + genericTls + genericGlobal + genericMixedPragmas
+
+echo nonGenericProc()
+echo nonGenericProc()
+
+echo genericProc(int)
+echo genericProc(int)
+
+echo genericProc(string)
+echo genericProc(string)
+
+proc echoInThread[T]() {.thread.} =
+  echo genericProc(T)
+  echo genericProc(T)
+
+proc newEchoThread(T: typedesc) =
+  var t: Thread[void]
+  createThread(t, echoInThread[T])
+  joinThreads(t)
+
+newEchoThread int
+newEchoThread int
+newEchoThread float
+