Adding check for swift language to surefire sensor

Author: kasparskurms

sonar-swift-plugin/src/main/java/org/sonar/plugins/swift/surefire/SwiftSurefireSensor.java

@@ -27,6 +27,7 @@
 import org.sonar.api.config.Settings;
 import org.sonar.api.resources.Project;
 import org.sonar.api.scan.filesystem.PathResolver;
+import org.sonar.plugins.swift.lang.core.Swift;
 
 import java.io.File;
 
@@ -53,7 +54,7 @@ public SwiftSurefireSensor(FileSystem fileSystem, PathResolver pathResolver, Res
 
     @Override
     public boolean shouldExecuteOnProject(Project project) {
-        return StringUtils.isNotEmpty(this.reportPath());
+        return StringUtils.isNotEmpty(this.reportPath()) && fileSystem.languages().contains(Swift.KEY);
     }
 
     @Override