[wasm][debugger] Reverting the old behavior of scope id numeration (dotnet#59368)

* Keeping the old behavior of scope id what we have before start using debugger-agent.

* Fix compilation.

* Fix compilation.

Author: thaystg

src/mono/mono/component/debugger-agent.c

@@ -355,7 +355,9 @@ static int objref_id = 0;
 
 static int event_request_id = 0;
 
+#ifndef TARGET_WASM
 static int frame_id = 0;
+#endif
 
 static GPtrArray *event_requests;
 
@@ -3024,7 +3026,7 @@ compute_frame_info (MonoInternalThread *thread, DebuggerTlsData *tls, gboolean f
 {
 	ComputeFramesUserData user_data;
 	GSList *tmp;
-	int i, findex, new_frame_count;
+	int findex, new_frame_count;
 	StackFrame **new_frames, *f;
 	MonoUnwindOptions opts = (MonoUnwindOptions)(MONO_UNWIND_DEFAULT | MONO_UNWIND_REG_LOCATIONS);
 
@@ -3083,6 +3085,8 @@ compute_frame_info (MonoInternalThread *thread, DebuggerTlsData *tls, gboolean f
 	for (tmp = user_data.frames; tmp; tmp = tmp->next) {
 		f = (StackFrame *)tmp->data;
 
+#ifndef TARGET_WASM
+		int i;
 		/* 
 		 * Reuse the id for already existing stack frames, so invokes don't invalidate
 		 * the still valid stack frames.
@@ -3096,7 +3100,9 @@ compute_frame_info (MonoInternalThread *thread, DebuggerTlsData *tls, gboolean f
 
 		if (i >= tls->frame_count)
 			f->id = mono_atomic_inc_i32 (&frame_id);
-
+#else //keep the same behavior that we have for wasm before start using debugger-agent			
+		f->id = findex+1;
+#endif
 		new_frames [findex ++] = f;
 	}
 

src/mono/wasm/debugger/DebuggerTestSuite/SteppingTests.cs

@@ -928,5 +928,25 @@ await EvaluateAndCheck(
             await StepAndCheck(StepKind.Over, "dotnet://debugger-test.dll/debugger-test.cs", 719, 8, "MoveNext");
             await StepAndCheck(StepKind.Over, "dotnet://debugger-test.dll/debugger-test.cs", 720, 4, "MoveNext");
         }
+
+        [Fact]
+        public async Task CheckResetFrameNumberForEachStep()
+        {
+            var bp_conditional = await SetBreakpointInMethod("debugger-test.dll", "SteppingInto", "MethodToStep", 1);
+            await EvaluateAndCheck(
+                "window.setTimeout(function() { invoke_static_method('[debugger-test] SteppingInto:MethodToStep'); }, 1);",
+                "dotnet://debugger-test.dll/debugger-test.cs",
+                bp_conditional.Value["locations"][0]["lineNumber"].Value<int>(),
+                bp_conditional.Value["locations"][0]["columnNumber"].Value<int>(),
+                "MethodToStep"
+            );
+            var pause_location = await StepAndCheck(StepKind.Into, "dotnet://debugger-test.dll/debugger-test.cs", 799, 4, "Increment");
+            pause_location = await StepAndCheck(StepKind.Over, "dotnet://debugger-test.dll/debugger-test.cs", 800, 8, "Increment");
+            Assert.Equal(pause_location["callFrames"][0]["callFrameId"], "dotnet:scope:1");
+            pause_location = await StepAndCheck(StepKind.Over, "dotnet://debugger-test.dll/debugger-test.cs", 801, 8, "Increment");
+            Assert.Equal(pause_location["callFrames"][0]["callFrameId"], "dotnet:scope:1");
+            pause_location = await StepAndCheck(StepKind.Over, "dotnet://debugger-test.dll/debugger-test.cs", 806, 8, "Increment");
+            Assert.Equal(pause_location["callFrames"][0]["callFrameId"], "dotnet:scope:1");
+        }
     }
 }

src/mono/wasm/debugger/tests/debugger-test/debugger-test.cs

@@ -782,3 +782,28 @@ public static void LoopToBreak()
     }
 }
 
+public class SteppingInto
+{
+    static int currentCount = 0;
+    static MyIncrementer incrementer = new MyIncrementer();
+    public static void MethodToStep()
+    {
+        currentCount = incrementer.Increment(currentCount);
+    }
+}
+
+public class MyIncrementer
+{
+    private Func<DateTime> todayFunc = () => DateTime.Now;
+
+    public int Increment(int count)
+    {
+        var today = todayFunc();
+        if (today.DayOfWeek == DayOfWeek.Sunday)
+        {
+            return count + 2;
+        }
+
+        return count + 1;
+    }
+}