Revert "Add support for generic function type syntax, part 1" (TBR)

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

Index: pkg/analysis_server/lib/src/services/completion/dart/variable_name_contributor.dart
diff --git a/pkg/analysis_server/lib/src/services/completion/dart/variable_name_contributor.dart b/pkg/analysis_server/lib/src/services/completion/dart/variable_name_contributor.dart
index 98b7f4b92c6a50c1d3a3fb13e5c243c13e76124b..2c4d91352a1c618a5b62eae33685a24d75f5d3aa 100644
--- a/pkg/analysis_server/lib/src/services/completion/dart/variable_name_contributor.dart
+++ b/pkg/analysis_server/lib/src/services/completion/dart/variable_name_contributor.dart
@@ -56,10 +56,7 @@ class VariableNameContributor extends DartCompletionContributor {
           strName = _getStringName(node.expression as Identifier);
         }
       } else if (node is VariableDeclarationList) {
-        TypeAnnotation typeAnnotation = node.type;
-        if (typeAnnotation is TypeName) {
-          strName = _getStringName(typeAnnotation.name);
-        }
+        strName = _getStringName(node.type.name);
       } else if (node is TopLevelVariableDeclaration) {
         // The parser parses 'Foo ' and 'Foo ;' differently, resulting in the
         // following.
@@ -67,11 +64,8 @@ class VariableNameContributor extends DartCompletionContributor {
         // 'Foo ;': TopLevelVariableDeclaration with type null, and a first
         // variable of 'Foo'
         VariableDeclarationList varDeclarationList = node.variables;
-        TypeAnnotation typeAnnotation = varDeclarationList.type;
-        if (typeAnnotation != null) {
-          if (typeAnnotation is TypeName) {
-            strName = _getStringName(typeAnnotation.name);
-          }
+        if (varDeclarationList.type != null) {
+          strName = _getStringName(varDeclarationList.type.name);
         } else {
           NodeList<VariableDeclaration> varDeclarations =
               varDeclarationList.variables;