Mark some expressions after processing their components

when it's semantically correct

Expressions: calls, 'for' loops, elvis operators
It's significant for reporting 'unreachable code' correctly

compiler/testData/cfg/expressions/unresolvedCall.instructions

@@ -10,10 +10,10 @@ L0:
     w(a|<v0>)
   2 mark({ a.foo() })
     mark(a.foo())
-    mark(foo())
     error(foo, No resolved call)
     error(foo, No resolved call)
     r(a) -> <v1>
+    mark(foo())
     magic(foo()|<v1>) -> <v2>
 L1:
   1 <END>                           NEXT:[<SINK>]