Fix goto references for TerseRelayResolver (#4587)

Summary: Pull Request resolved: #4587

Reviewed By: alunyov

Differential Revision: D52886363

Pulled By: captbaritone

fbshipit-source-id: 24eccce3c150482525983475253849dda5751864

Author: tobias-tengler

compiler/crates/relay-lsp/src/docblock_resolution_info.rs

@@ -37,18 +37,21 @@ pub fn create_docblock_resolution_info(
                 }
             };
 
+            // Root fragment
             if let Some(root_fragment) = resolver_ir.root_fragment {
                 if root_fragment.location.contains(position_span) {
                     return Some(DocblockResolutionInfo::RootFragment(root_fragment.item));
                 }
             }
 
+            // Field name
             if resolver_ir.field.name.span.contains(position_span) {
                 return Some(DocblockResolutionInfo::FieldName(
                     resolver_ir.field.name.value,
                 ));
             }
 
+            // Return type
             if let Some(output_type) = &resolver_ir.output_type {
                 if output_type.inner().location.contains(position_span) {
                     return Some(DocblockResolutionInfo::Type(
@@ -57,6 +60,7 @@ pub fn create_docblock_resolution_info(
                 }
             }
 
+            // @deprecated key
             if let Some(deprecated) = resolver_ir.deprecated {
                 if deprecated.key_location().contains(position_span) {
                     return Some(DocblockResolutionInfo::Deprecated);
@@ -89,6 +93,13 @@ pub fn create_docblock_resolution_info(
                 }
             }
 
+            // Field name
+            if resolver_ir.field.name.span.contains(position_span) {
+                return Some(DocblockResolutionInfo::FieldName(
+                    resolver_ir.field.name.value,
+                ));
+            }
+
             // @deprecated key
             if let Some(deprecated) = resolver_ir.deprecated {
                 if deprecated.key_location().contains(position_span) {

compiler/crates/relay-lsp/src/references/mod.rs

@@ -80,10 +80,7 @@ fn get_references_response(
                         On::Type(type_) => type_.value.item,
                         On::Interface(interface) => interface.value.item,
                     },
-                    DocblockIr::TerseRelayResolver(_) => {
-                        // TODO: Implement support for terse relay resolvers.
-                        return Err(LSPRuntimeError::ExpectedError);
-                    }
+                    DocblockIr::TerseRelayResolver(terse_resolver) => terse_resolver.type_.item,
                     DocblockIr::StrongObjectResolver(_) => {
                         // TODO: Implement support for strong object.
                         return Err(LSPRuntimeError::ExpectedError);