fix #3505 wrong var {.global.} initialization, asign variable to it (#20812)

* fix #3505 wrong var {.global.} initialization, asign variable to it

* fix #5132 as well

* follow suggestions

* handle all call kinds

* Update tests/global/t3505.nim

* Update compiler/semstmts.nim

* Update compiler/semstmts.nim

* Update compiler/semstmts.nim

* follow suggestion

* Update compiler/semstmts.nim

Co-authored-by: Andreas Rumpf <rumpf_a@web.de>
(cherry picked from commit 1410243d3b)

tests/global/t3505.nim

@@ -0,0 +1,33 @@
+discard """
+cmd: "nim check $options --hints:off $file"
+action: "reject"
+nimout: '''
+t3505.nim(22, 22) Error: cannot assign local to global variable
+t3505.nim(31, 28) Error: cannot assign local to global variable
+
+
+
+
+
+'''
+"""
+
+
+
+
+
+
+proc foo =
+  let a = 0
+  var b {.global.} = a
+foo()
+
+# issue #5132
+proc initX(it: float): int = 8
+proc initX2(it: int): int = it
+
+proc main() =
+  var f: float
+  var x {.global.} = initX2(initX(f))
+  
+main()