Fix conditional on 5.6

Author: plemarquand

src/debugger/buildConfig.ts

@@ -131,7 +131,8 @@ export class DebugConfigurationFactory {
                 const swiftVersion = this.ctx.workspaceContext.toolchain.swiftVersion;
                 if (
                     swiftVersion.isLessThan(new Version(5, 7, 0)) &&
-                    swiftVersion.isGreaterThanOrEqual(new Version(5, 6, 0))
+                    swiftVersion.isGreaterThanOrEqual(new Version(5, 6, 0)) &&
+                    process.platform === "darwin"
                 ) {
                     // if debugging on macOS with Swift 5.6 we need to create a custom launch
                     // configuration so we can set the system architecture
@@ -226,9 +227,6 @@ export class DebugConfigurationFactory {
         if (this.ctx.swiftPackage.getTargets(TargetType.test).length === 0) {
             return null;
         }
-        if (process.platform !== "darwin") {
-            return null;
-        }
 
         let testFilterArg: string;
         const testList = this.testList.join(",");