Get rid of hokey dependencyMapList stuff.

sdk/lib/_internal/pub/test/install/path/shared_dependency_test.dart

Index: sdk/lib/_internal/pub/test/install/path/shared_dependency_test.dart
diff --git a/sdk/lib/_internal/pub/test/install/path/shared_dependency_test.dart b/sdk/lib/_internal/pub/test/install/path/shared_dependency_test.dart
index 40e74fa29771273818827d2d7f17b6cf78111193..a9afb81768313615a48f0dace454b2ad73d2cb95 100644
--- a/sdk/lib/_internal/pub/test/install/path/shared_dependency_test.dart
+++ b/sdk/lib/_internal/pub/test/install/path/shared_dependency_test.dart
@@ -17,16 +17,16 @@ main() {
 
     d.dir("foo", [
       d.libDir("foo"),
-      d.libPubspec("foo", "0.0.1", deps: [
-        {"path": "../shared"}
-      ])
+      d.libPubspec("foo", "0.0.1", deps: {
+        "shared": {"path": "../shared"}
+      })
     ]).create();
 
     d.dir("bar", [
       d.libDir("bar"),
-      d.libPubspec("bar", "0.0.1", deps: [
-        {"path": "../shared"}
-      ])
+      d.libPubspec("bar", "0.0.1", deps: {
+        "shared": {"path": "../shared"}
+      })
     ]).create();
 
     d.dir(appPath, [
@@ -56,16 +56,16 @@ main() {
 
     d.dir("foo", [
       d.libDir("foo"),
-      d.libPubspec("foo", "0.0.1", deps: [
-        {"path": "../shared"}
-      ])
+      d.libPubspec("foo", "0.0.1", deps: {
+        "shared": {"path": "../shared"}
+      })
     ]).create();
 
     d.dir("bar", [
       d.libDir("bar"),
-      d.libPubspec("bar", "0.0.1", deps: [
-        {"path": "../././shared"}
-      ])
+      d.libPubspec("bar", "0.0.1", deps: {
+        "shared": {"path": "../././shared"}
+      })
     ]).create();
 
     d.dir(appPath, [
@@ -95,16 +95,16 @@ main() {
 
     d.dir("foo", [
       d.libDir("foo"),
-      d.libPubspec("foo", "0.0.1", deps: [
-        {"path": "../shared"}
-      ])
+      d.libPubspec("foo", "0.0.1", deps: {
+        "shared": {"path": "../shared"}
+      })
     ]).create();
 
     d.dir("bar", [
       d.libDir("bar"),
-      d.libPubspec("bar", "0.0.1", deps: [
-        {"path": path.join(sandboxDir, "shared")}
-      ])
+      d.libPubspec("bar", "0.0.1", deps: {
+        "shared": {"path": path.join(sandboxDir, "shared")}
+      })
     ]).create();
 
     d.dir(appPath, [