Do not suggest static fields in constructor initializer - fixes #24256

pkg/analysis_server/lib/src/services/completion/prefixed_element_contributor.dart

Index: pkg/analysis_server/lib/src/services/completion/prefixed_element_contributor.dart
diff --git a/pkg/analysis_server/lib/src/services/completion/prefixed_element_contributor.dart b/pkg/analysis_server/lib/src/services/completion/prefixed_element_contributor.dart
index 1df4993044afe9f542d9d7a665eef073484c12ed..5a52da8f134d8c03e108567d3e21e9f410d3908f 100644
--- a/pkg/analysis_server/lib/src/services/completion/prefixed_element_contributor.dart
+++ b/pkg/analysis_server/lib/src/services/completion/prefixed_element_contributor.dart
@@ -127,7 +127,7 @@ class _FieldFormalSuggestionBuilder implements SuggestionBuilder {
         ClassDeclaration classDecl =
             constructorDecl.getAncestor((p) => p is ClassDeclaration);
         for (ClassMember member in classDecl.members) {
-          if (member is FieldDeclaration) {
+          if (member is FieldDeclaration && !member.isStatic) {
             for (VariableDeclaration varDecl in member.fields.variables) {
               SimpleIdentifier fieldId = varDecl.name;
               if (fieldId != null) {