Issue 30028. Fix for invoking loadLibrary() for deferred library with invalid URI.

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

Index: pkg/analyzer/lib/src/generated/element_resolver.dart
diff --git a/pkg/analyzer/lib/src/generated/element_resolver.dart b/pkg/analyzer/lib/src/generated/element_resolver.dart
index 916e97480a63bdbdf97daa29e77f10507e1bf871..87aeba38555a09b0592a8c84f6bfc897169b8a85 100644
--- a/pkg/analyzer/lib/src/generated/element_resolver.dart
+++ b/pkg/analyzer/lib/src/generated/element_resolver.dart
@@ -629,7 +629,7 @@ class ElementResolver extends SimpleAstVisitor<Object> {
       FunctionElement loadLibraryFunction =
           importedLibrary?.loadLibraryFunction;
       methodName.staticElement = loadLibraryFunction;
-      node.staticInvokeType = loadLibraryFunction.type;
+      node.staticInvokeType = loadLibraryFunction?.type;
       return null;
     } else {
       //