Gather metrics on super invocations

This only looks at method invocations and property accessors. It doesn't
look at operator invocations. While it might be interesting, I doubt it
would be significantly different.

Change-Id: I51ffd612fdbf5b60470bd40cbe90f3c2b82fe1e5
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/138883
Reviewed-by: Jaime Wren <jwren@google.com>
Commit-Queue: Brian Wilkerson <brianwilkerson@google.com>

Author: bwilkerson

pkg/analysis_server/tool/completion_metrics/relevance_metrics.dart

@@ -1050,6 +1050,16 @@ class RelevanceDataCollector extends RecursiveAstVisitor<void> {
   void visitMethodInvocation(MethodInvocation node) {
     var member = node.methodName.staticElement;
     _recordMemberDepth(node.target?.staticType, member);
+    if (node.target is SuperExpression) {
+      var enclosingMethod = node.thisOrAncestorOfType<MethodDeclaration>();
+      if (enclosingMethod != null) {
+        if (enclosingMethod.name.name == node.methodName.name) {
+          data.recordTypeMatch('super invocation member', 'same');
+        } else {
+          data.recordTypeMatch('super invocation member', 'different');
+        }
+      }
+    }
     if (node.target != null) {
       var contextType = featureComputer.computeContextType(node);
       if (contextType != null) {
@@ -1156,6 +1166,16 @@ class RelevanceDataCollector extends RecursiveAstVisitor<void> {
   void visitPropertyAccess(PropertyAccess node) {
     var member = node.propertyName.staticElement;
     _recordMemberDepth(node.target?.staticType, member);
+    if (node.target is SuperExpression) {
+      var enclosingMethod = node.thisOrAncestorOfType<MethodDeclaration>();
+      if (enclosingMethod != null) {
+        if (enclosingMethod.name.name == node.propertyName.name) {
+          data.recordTypeMatch('super property access member', 'same');
+        } else {
+          data.recordTypeMatch('super property access member', 'different');
+        }
+      }
+    }
     if (!(member is PropertyAccessorElement && member.isSetter)) {
       var contextType = featureComputer.computeContextType(node);
       if (contextType != null) {