Interop: support passing linker as arg to stub generator

buildSrc/src/main/groovy/org/jetbrains/kotlin/NativeInteropPlugin.groovy

@@ -26,6 +26,7 @@ class NamedNativeInteropConfig extends AbstractFileCollection implements Named {
 
     private List<String> compilerOpts = []
     private FileCollection headers;
+    private String linker
     private List<String> linkerOpts = []
     private FileCollection linkFiles;
     private List<String> linkTasks = []
@@ -48,6 +49,10 @@ class NamedNativeInteropConfig extends AbstractFileCollection implements Named {
         headers = headers + files
     }
 
+    void linker(String value) {
+        linker = value
+    }
+
     void linkerOpts(String... values) {
         linkerOpts.addAll(values)
     }
@@ -161,6 +166,10 @@ class NamedNativeInteropConfig extends AbstractFileCollection implements Named {
                     args "-pkg:" + pkg
                 }
 
+                if (linker != null) {
+                    args "-linker:" + linker
+                }
+
                 args compilerOpts.collect { "-copt:$it" }
                 args linkerOpts.collect { "-lopt:$it" }