Include parameter annotations in toSource (issue 24578)

pkg/analyzer/test/generated/ast_test.dart

Index: pkg/analyzer/test/generated/ast_test.dart
diff --git a/pkg/analyzer/test/generated/ast_test.dart b/pkg/analyzer/test/generated/ast_test.dart
index e7c20255f53cbb876a89c0f773e0f6d578466b12..e25c2533727cf2793abef1e2b014ad112002db9c 100644
--- a/pkg/analyzer/test/generated/ast_test.dart
+++ b/pkg/analyzer/test/generated/ast_test.dart
@@ -2318,6 +2318,13 @@ class ToSourceVisitorTest extends EngineTestCase {
             AstFactory.simpleFormalParameter3("p"), AstFactory.integer(0)));
   }
 
+  void test_visitDefaultFormalParameter_annotation() {
+    DefaultFormalParameter parameter = AstFactory.positionalFormalParameter(
+        AstFactory.simpleFormalParameter3("p"), AstFactory.integer(0));
+    parameter.metadata.add(AstFactory.annotation(AstFactory.identifier3("A")));
+    _assertSource('@A p = 0', parameter);
+  }
+
   void test_visitDoStatement() {
     _assertSource(
         "do {} while (c);",
@@ -2460,6 +2467,12 @@ class ToSourceVisitorTest extends EngineTestCase {
         AstFactory.fieldFormalParameter(null, AstFactory.typeName4("A"), "a"));
   }
 
+  void test_visitFieldFormalParameter_annotation() {
+    FieldFormalParameter parameter = AstFactory.fieldFormalParameter2('f');
+    parameter.metadata.add(AstFactory.annotation(AstFactory.identifier3("A")));
+    _assertSource('@A this.f', parameter);
+  }
+
   void test_visitForEachStatement_declared() {
     _assertSource(
         "for (var a in b) {}",
@@ -2898,6 +2911,12 @@ class ToSourceVisitorTest extends EngineTestCase {
     _assertSource("f()", AstFactory.functionTypedFormalParameter(null, "f"));
   }
 
+  void test_visitFunctionTypedFormalParameter_annotation() {
+    FunctionTypedFormalParameter parameter = AstFactory.functionTypedFormalParameter(null, "f");
+    parameter.metadata.add(AstFactory.annotation(AstFactory.identifier3("A")));
+    _assertSource('@A f()', parameter);
+  }
+
   void test_visitFunctionTypedFormalParameter_type() {
     _assertSource(
         "T f()",
@@ -3521,6 +3540,12 @@ class ToSourceVisitorTest extends EngineTestCase {
         AstFactory.simpleFormalParameter4(AstFactory.typeName4("A"), "a"));
   }
 
+  void test_visitSimpleFormalParameter_annotation() {
+    SimpleFormalParameter parameter = AstFactory.simpleFormalParameter3('x');
+    parameter.metadata.add(AstFactory.annotation(AstFactory.identifier3("A")));
+    _assertSource('@A x', parameter);
+  }
+
   void test_visitSimpleIdentifier() {
     _assertSource("a", AstFactory.identifier3("a"));
   }