Remove now-unused WorkspaceResolve

The reason this type existed was to pass in a `Workspace`, but that's no
longer necessary!

src/cargo/core/resolver/context.rs

@@ -15,8 +15,8 @@ use crate::util::Graph;
 use super::dep_cache::RegistryQueryer;
 use super::types::{ConflictMap, FeaturesSet, Method};
 
+pub use super::encode::Metadata;
 pub use super::encode::{EncodableDependency, EncodablePackageId, EncodableResolve};
-pub use super::encode::{Metadata, WorkspaceResolve};
 pub use super::resolve::Resolve;
 
 // A `Context` is basically a bunch of local resolution information which is

src/cargo/core/resolver/encode.rs

@@ -325,28 +325,23 @@ impl<'de> de::Deserialize<'de> for EncodablePackageId {
     }
 }
 
-pub struct WorkspaceResolve<'a, 'cfg> {
-    pub ws: &'a Workspace<'cfg>,
-    pub resolve: &'a Resolve,
-}
-
-impl<'a, 'cfg> ser::Serialize for WorkspaceResolve<'a, 'cfg> {
+impl<'a> ser::Serialize for Resolve {
     fn serialize<S>(&self, s: S) -> Result<S::Ok, S::Error>
     where
         S: ser::Serializer,
     {
-        let mut ids: Vec<_> = self.resolve.iter().collect();
+        let mut ids: Vec<_> = self.iter().collect();
         ids.sort();
 
         let encodable = ids
             .iter()
-            .map(|&id| encodable_resolve_node(id, self.resolve))
+            .map(|&id| encodable_resolve_node(id, self))
             .collect::<Vec<_>>();
 
-        let mut metadata = self.resolve.metadata().clone();
+        let mut metadata = self.metadata().clone();
 
         for &id in ids.iter().filter(|id| !id.source_id().is_path()) {
-            let checksum = match self.resolve.checksums()[&id] {
+            let checksum = match self.checksums()[&id] {
                 Some(ref s) => &s[..],
                 None => "<none>",
             };
@@ -362,7 +357,6 @@ impl<'a, 'cfg> ser::Serialize for WorkspaceResolve<'a, 'cfg> {
 
         let patch = Patch {
             unused: self
-                .resolve
                 .unused_patches()
                 .iter()
                 .map(|id| EncodableDependency {

src/cargo/core/resolver/mod.rs

@@ -65,8 +65,8 @@ use self::dep_cache::RegistryQueryer;
 use self::types::{ConflictMap, ConflictReason, DepsFrame};
 use self::types::{FeaturesSet, RcVecIter, RemainingDeps, ResolverProgress};
 
+pub use self::encode::Metadata;
 pub use self::encode::{EncodableDependency, EncodablePackageId, EncodableResolve};
-pub use self::encode::{Metadata, WorkspaceResolve};
 pub use self::errors::{ActivateError, ActivateResult, ResolveError};
 pub use self::resolve::Resolve;
 pub use self::types::Method;

src/cargo/ops/lockfile.rs

@@ -2,7 +2,6 @@ use std::io::prelude::*;
 
 use toml;
 
-use crate::core::resolver::WorkspaceResolve;
 use crate::core::{resolver, Resolve, Workspace};
 use crate::util::errors::{CargoResult, CargoResultExt};
 use crate::util::toml as cargo_toml;
@@ -89,7 +88,7 @@ fn resolve_to_string_orig(
         Ok(s)
     });
 
-    let toml = toml::Value::try_from(WorkspaceResolve { ws, resolve }).unwrap();
+    let toml = toml::Value::try_from(resolve).unwrap();
 
     let mut out = String::new();