[debugger] Migrate more debugger tests to inspector

test/debugger/debug/regress/debug-prepare-step-in.js

Index: test/debugger/debug/regress/debug-prepare-step-in.js
diff --git a/test/mjsunit/regress/debug-prepare-step-in.js b/test/debugger/debug/regress/debug-prepare-step-in.js
similarity index 93%
rename from test/mjsunit/regress/debug-prepare-step-in.js
rename to test/debugger/debug/regress/debug-prepare-step-in.js
index 93474da695f60e82ee9bf579e966dc765bddc779..fbbc1c935a66ad7f58190527c77fc8e86e07e37a 100644
--- a/test/mjsunit/regress/debug-prepare-step-in.js
+++ b/test/debugger/debug/regress/debug-prepare-step-in.js
@@ -25,8 +25,7 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-// Flags: --expose-debug-as debug --allow-natives-syntax --expose-gc
-// Get the Debug object exposed from the debug context global object.
+// Flags: --expose-gc
 Debug = debug.Debug
 
 function breakListener(event, exec_state, event_data, data) {