C++: respond to PR comments

cpp/ql/src/jsf/4.17 Types/AV Rule 147.ql

@@ -25,7 +25,7 @@ class InvalidFloatCastExpr extends Expr {
   InvalidFloatCastExpr() {
     exists(Type src, Type dst |
       src = this.getUnspecifiedType() and
-      dst = this.getActualType().getUnspecifiedType() and
+      dst = this.getFullyConverted().getUnspecifiedType() and
       src.(GeneralPointerType).getBaseType() instanceof FloatingPointType and
       src.(GeneralPointerType).getBaseType() != dst.(GeneralPointerType).getBaseType()
     )

cpp/ql/src/jsf/4.23 Type Conversions/AV Rule 182.ql

@@ -20,7 +20,7 @@ class NullPointer extends Expr {
 
 from Expr e, Type t1, Type t2
 where t1 = e.getUnspecifiedType() and
-      t2 = e.getActualType().getUnspecifiedType() and
+      t2 = e.getFullyConverted().getUnspecifiedType() and
       t1 != t2 and
       (t1 instanceof PointerType or t2 instanceof PointerType) and
       not (t2 instanceof VoidPointerType and t1 instanceof PointerType) and

cpp/ql/src/semmle/code/cpp/Declaration.qll

@@ -271,7 +271,7 @@ abstract class DeclarationEntry extends Locatable {
   abstract Type getType();
 
   /**
-   * Gets the type associated with this declaration entrry after specifiers
+   * Gets the type associated with this declaration entry after specifiers
    * have been deeply stripped and typedefs have been resolved.
    *
    * For variable declarations, get the type of the variable.

cpp/ql/src/semmle/code/cpp/exprs/Expr.qll

@@ -71,10 +71,6 @@ class Expr extends StmtParent, @expr {
   /**
    * Gets the type of this expression after specifiers have been deeply
    * stripped and typedefs have been resolved.
-   *
-   * In most cases, this predicate will be the same as getType().  It will
-   * only differ when the result of getType() is a TypedefType, in which
-   * case this predicate will (possibly recursively) resolve the typedef.
    */
   Type getUnspecifiedType() { result = this.getType().getUnspecifiedType() }
 
@@ -225,7 +221,7 @@ class Expr extends StmtParent, @expr {
       exists ( Expr e2 |
         e.(TypeidOperator).getExpr() = e2 and
         (
-          not e2.getActualType().getUnspecifiedType().(Class).isPolymorphic() or
+          not e2.getFullyConverted().getUnspecifiedType().(Class).isPolymorphic() or
           not e2.isGLValueCategory()
         )
       ) or