Try to correct these regressions.

Note that the iterator-part may not be ideal; I understand that removing iterators from
the start of simple name lookup was a deliberate decision and I don't want to revert all of that.
Thus the new text is somewhat awkward.
Closes modelica#2175

chapters/scoping.tex

@@ -49,25 +49,31 @@ \section{Static Name Lookup}\doublelabel{static-name-lookup}
 component types, etc. Implicitly defined names of record constructor
 functions and enumeration type conversion functions are ignored during
 type name lookup {[}\emph{since a record and the implicitly created
-record constructor function, see \autoref{record-constructor-functions}, , and an
+record constructor function, see \autoref{record-constructor-functions}, and an
 enumeration type and the implicitly created conversion function
 (\autoref{type-conversion-of-integer-to-enumeration-values}), have the same name}{]}. Names of record
 classes and enumeration types are ignored during function name lookup.
 
 \subsection{Simple Name Lookup}\doublelabel{simple-name-lookup}
 
+
 When an element, equation, or section is flattened, any simple name
-  {[}not composed using dot notation{]} is looked up sequentially in each
+  {[}not composed using dot notation{]} is first looked up sequentially among
+iteration variables (if any; see below), and then looked up sequentially in each
 member of the ordered set \textbf{of instance scopes (see
 \autoref{the-class-tree}) corresponding to lexically enclosing classes} until a
 match is found or an enclosing class is encapsulated. In the latter case
 the lookup stops except for the predefined types, functions and
-operators defined in this specification.
+operators defined in this specification. For these cases the lookup continues in the global scope, where they are defined.
+
+The iteration variables are the implicitly declared iteration variable(s) if inside
+the body of a for-loop, \autoref{for-equations-repetitive-equation-structures} and \autoref{for-statement},
+or the body of a reduction expression, \autoref{reduction-functions-and-operators}.
 
 Reference to variables successfully looked up in an enclosing class is
 only allowed for variables declared as constant. The values of modifiers
 are thus resolved in the \textbf{instance} scope of which the modifier
-appears; if the use is in a modifier on a short class definition,
+appears; if the use is in a modifier on a short class definition, see \autoref{short-class-definition}.
 
 This lookup in each \textbf{instance} scope is performed as follows