Fix 'x_no_source_debug_extension' inverted behavior (#1078)

Author: oliviernotteghem

src/main/starlark/core/options/opts.kotlinc.bzl

@@ -314,7 +314,7 @@ _KOPTS_ALL = {
         ),
         type = attr.bool,
         value_to_flag = {
-            False: ["-Xno-source-debug-extension"],
+            True: ["-Xno-source-debug-extension"],
         },
     ),
     "jvm_target": struct(