Elements. Set extension type representation metadata to both field, and formal parameter.

Change-Id: Ib064c4ba9008a0a222b8b09cd024231461d78009
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/461146
Commit-Queue: Konstantin Shcheglov <[email protected]>
Reviewed-by: Paul Berry <[email protected]>

Author: scheglov

pkg/analyzer/lib/src/summary2/element_builder.dart

@@ -2112,7 +2112,7 @@ class FragmentBuilder extends ThrowingAstVisitor<void> {
           )
           ..isDeclaring = true
           ..hasImplicitType = true;
-
+    formalParameterFragment.metadata = _buildMetadata(formalParameter.metadata);
     formalParameter.declaredFragment = formalParameterFragment;
 
     {
@@ -2176,6 +2176,9 @@ class FragmentBuilder extends ThrowingAstVisitor<void> {
           )
           ..isDeclaring = true
           ..hasImplicitType = true;
+    formalParameterFragment.metadata = _buildMetadata(
+      representation.fieldMetadata,
+    );
 
     {
       var constructorFragment =

pkg/analyzer/lib/src/summary2/informative_data.dart

@@ -375,6 +375,12 @@ class InformativeDataApplier {
           representation.firstTokenOffset = infoRep.fieldFirstTokenOffset;
           representation.nameOffset = infoRep.fieldNameOffset;
           representation.setCodeRange(infoRep.codeOffset, infoRep.codeLength);
+          primaryConstructor.deferConstantOffsets(
+            infoRep.fieldConstantOffsets,
+            (applier) {
+              applier.applyToMetadata(representation.metadata);
+            },
+          );
         });
       }
 

pkg/analyzer/test/src/summary/elements/extension_type_test.dart

@@ -836,6 +836,14 @@ library
               formalParameters
                 #F4 requiredPositional final this.it (nameOffset:43) (firstTokenOffset:34) (offset:43)
                   element: <testLibrary>::@extensionType::A::@constructor::new::@formalParameter::it
+                  metadata
+                    Annotation
+                      atSign: @ @34
+                      name: SimpleIdentifier
+                        token: foo @35
+                        element: package:test/a.dart::@getter::foo
+                        staticType: null
+                      element: package:test/a.dart::@getter::foo
           getters
             #F5 synthetic it (nameOffset:<null>) (firstTokenOffset:<null>) (offset:43)
               element: <testLibrary>::@extensionType::A::@getter::it
@@ -869,6 +877,14 @@ library
             #E0 requiredPositional final hasImplicitType declaring this.it
               firstFragment: #F4
               type: int
+              metadata
+                Annotation
+                  atSign: @ @34
+                  name: SimpleIdentifier
+                    token: foo @35
+                    element: package:test/a.dart::@getter::foo
+                    staticType: null
+                  element: package:test/a.dart::@getter::foo
               field: <testLibrary>::@extensionType::A::@field::it
       getters
         synthetic isExtensionTypeMember it