unified: More typo fixes

Author: asgerf

unified/ql/lib/codeql/unified/internal/FacadeAst.qll

@@ -23,7 +23,7 @@ module Unified {
       )
     }
 
-    /** Gets the nearest enclosing class declaration. */
+    /** Gets the nearest enclosing class declaration, if any. */
     ClassLikeDeclaration getEnclosingClass() {
       exists(AstNode parent | parent = this.getParent() |
         result = parent

unified/ql/lib/codeql/unified/internal/StaticNameBinding.qll

@@ -648,7 +648,7 @@ module Public {
       unqualifiedMemberAccess(this, instanceAccess, target, accessingClass)
     }
 
-    /** Gets the name declaration of the member being accessed. */
+    /** Gets the name binding of the member being accessed. */
     NameBinding getTarget() { result = target }
 
     /** Gets the enclosing class whose (possibly inherited) member is being accessed. */