Removed an unnecessary disabling of isPureStruct.

fibrechannelscsi · fibrechannelscsi · commit bc4b38d747cf · 2022-10-31T14:43:44.000-06:00
This would have prevented explicitly specified KeyPaths through pure structs, e.g., \A.b.c, from taking the optimized path.
diff --git a/stdlib/public/core/KeyPath.swift b/stdlib/public/core/KeyPath.swift
@@ -3688,7 +3688,6 @@ internal struct InstantiateKeyPathBuffer: KeyPathPatternVisitor {
   }
 
   mutating func visitIntermediateComponentType(metadataRef: MetadataReference) {
-    isPureStruct.append(false)
     // Get the metadata for the intermediate type.
     let metadata = _resolveKeyPathMetadataReference(
                      metadataRef,

Original file line number	Diff line number	Diff line change
`@@ -3688,7 +3688,6 @@ internal struct InstantiateKeyPathBuffer: KeyPathPatternVisitor {`
`3688`	`3688`	`}`
`3689`	`3689`
`3690`	`3690`	`mutating func visitIntermediateComponentType(metadataRef: MetadataReference) {`
`3691`		`- isPureStruct.append(false)`
`3692`	`3691`	`// Get the metadata for the intermediate type.`
`3693`	`3692`	`let metadata = _resolveKeyPathMetadataReference(`
`3694`	`3693`	`metadataRef,`