Field checks for everybody (#8957)

* Field checks for JS backend

* Clean nkCall nodes with no arguments

Generating a nkEmpty in place of no arguments makes no sense form the
AST point of view and also trips up the VM codegen.

* Field checks for VM backend

* Test case for #6612

This patchset fixes #6612

* Add test case for LHS double evaluation

* Prevent LHS double-eval for JS backend

* Prevent double evaluation in VM backend

tests/vm/tcgemptycallarg.nim

@@ -0,0 +1,3 @@
+static:
+  doAssertRaises(ValueError):
+    raise newException(ValueError, "Yes")