Make sure build command tests can has no ordering requisite

Right now the clean command test relies on the build command test to
complete. That's not behaviour we want. Ideally tests should be able to
run in isolation.

Issue: #1184

test/integration-tests/commands/build.test.ts

@@ -58,25 +58,23 @@ suite("Build Commands", function () {
         await deactivateExtension();
     });
 
-    test("Swift: Run Build", async () => {
+    test("Swift: Run Build, Swift: Clean Build", async () => {
         // A breakpoint will have not effect on the Run command.
         vscode.debug.addBreakpoints(breakpoints);
 
-        const result = await vscode.commands.executeCommand(Commands.RUN);
+        let result = await vscode.commands.executeCommand(Commands.RUN);
         expect(result).to.be.true;
 
         vscode.debug.removeBreakpoints(breakpoints);
-    });
 
-    test("Swift: Clean Build", async () => {
         const buildPath = path.join(folderContext.folder.fsPath, ".build");
         const beforeItemCount = fs.readdirSync(buildPath).length;
 
-        const result = await vscode.commands.executeCommand(Commands.CLEAN_BUILD);
+        result = await vscode.commands.executeCommand(Commands.CLEAN_BUILD);
         expect(result).to.be.true;
 
         const afterItemCount = fs.readdirSync(buildPath).length;
-        // This test will run in order after the Swift: Run Build test,
+        // This test step will run in order after the Swift: Run Build test step,
         // where .build folder is going to be filled with built artifacts.
         // After executing the clean command the build directory is guranteed to have less entry.
         expect(afterItemCount).to.be.lessThan(beforeItemCount);