Rename "install" -> "get" and "update" -> "upgrade".

sdk/lib/_internal/pub/test/get/hosted/cached_pubspec_test.dart

Index: sdk/lib/_internal/pub/test/get/hosted/cached_pubspec_test.dart
diff --git a/sdk/lib/_internal/pub/test/install/hosted/cached_pubspec_test.dart b/sdk/lib/_internal/pub/test/get/hosted/cached_pubspec_test.dart
similarity index 81%
rename from sdk/lib/_internal/pub/test/install/hosted/cached_pubspec_test.dart
rename to sdk/lib/_internal/pub/test/get/hosted/cached_pubspec_test.dart
index c80ee31097b62cd95ae71c922786f4cc91d7daeb..3024336930cdfb591243deb9c1d25ef57c564b72 100644
--- a/sdk/lib/_internal/pub/test/install/hosted/cached_pubspec_test.dart
+++ b/sdk/lib/_internal/pub/test/get/hosted/cached_pubspec_test.dart
@@ -17,21 +17,20 @@ main() {
 
     d.appDir({"foo": "1.2.3"}).create();
 
-    // Run install once so it gets cached.
-    pubInstall();
+    // Get once so it gets cached.
+    pubGet();
 
     // Clear the cache. We don't care about anything that was served during
-    // the initial install.
+    // the initial get.
     getRequestedPaths();
 
     d.cacheDir({"foo": "1.2.3"}).validate();
     d.packagesDir({"foo": "1.2.3"}).validate();
 
     // Run the solver again now that it's cached.
-    pubInstall();
+    pubGet();
 
-    // The update should not have requested the pubspec since it's installed
-    // locally already.
+    // The get should not have requested the pubspec since it's local already.
     getRequestedPaths().then((paths) {
       expect(paths, isNot(contains("packages/foo/versions/1.2.3.yaml")));
     });