Create `loadLibrary` function element eagerly.

pkg/analyzer/lib/src/generated/resolver.dart

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library engine.resolver;
 
 import 'dart:collection';
 
 import 'ast.dart';
 import 'constant.dart';
@@ skipping 8153 matching lines @@
         for (Source source in library.compilationUnitSources) {
           TypeResolverVisitorFactory typeResolverVisitorFactory =
               analysisContext.typeResolverVisitorFactory;
           TypeResolverVisitor visitor = (typeResolverVisitorFactory == null)
               ? new TypeResolverVisitor(library.libraryElement, source,
                   _typeProvider, library.errorListener,
                   nameScope: library.libraryScope)
               : typeResolverVisitorFactory(library, source, _typeProvider);
           library.getAST(source).accept(visitor);
         }
+        library.libraryElement.createLoadLibraryFunction(_typeProvider);
       }
     });
   }
 
   /**
    * Compute a dependency map of libraries reachable from the given library. A dependency map is a
    * table that maps individual libraries to a list of the libraries that either import or export
    * those libraries.
    *
    * This map is used to compute all of the libraries involved in a cycle that include the root
@@ skipping 666 matching lines @@
           Source source = unit.source;
           CompilationUnit ast = unit.compilationUnit;
           TypeResolverVisitor visitor = new TypeResolverVisitor(
               library.libraryElement,
               source,
               _typeProvider,
               library.libraryScope.errorListener,
               nameScope: library.libraryScope);
           ast.accept(visitor);
         }
+        library.libraryElement.createLoadLibraryFunction(_typeProvider);
       }
     });
   }
 
   /**
    * Return an array containing the lexical identifiers associated with the nodes in the given list.
    *
    * @param names the AST nodes representing the identifiers
    * @return the lexical identifiers associated with the nodes in the list
    */
@@ skipping 7093 matching lines @@
     nonFields.add(node);
     return null;
   }
 
   @override
   Object visitNode(AstNode node) => node.accept(TypeResolverVisitor_this);
 
   @override
   Object visitWithClause(WithClause node) => null;
 }