GDScript: Fix lambda resolution with cyclic references

modules/gdscript/tests/scripts/analyzer/errors/lambda_cyclic_ref_call_arg.gd

@@ -0,0 +1,5 @@
+var f = (func (_a): return 0).call(x)
+var x = f
+
+func test():
+	pass

modules/gdscript/tests/scripts/analyzer/errors/lambda_cyclic_ref_call_arg.out

@@ -0,0 +1,2 @@
+GDTEST_ANALYZER_ERROR
+Could not resolve member "f": Cyclic reference.

modules/gdscript/tests/scripts/analyzer/errors/lambda_cyclic_ref_param.gd

@@ -0,0 +1,5 @@
+var f = func (_a = x): return 0
+var x = f
+
+func test():
+	pass

modules/gdscript/tests/scripts/analyzer/errors/lambda_cyclic_ref_param.out

@@ -0,0 +1,2 @@
+GDTEST_ANALYZER_ERROR
+Could not resolve member "f": Cyclic reference.

modules/gdscript/tests/scripts/analyzer/features/lambda_cyclic_ref_body.gd

@@ -0,0 +1,34 @@
+# GH-70592
+
+var f: Callable = func ():
+	x = 2
+	return 1
+
+var x: int = f.call()
+
+var g: Array[Callable] = [
+	func ():
+		y += 10
+		return 1,
+	func ():
+		y += 20
+		return 2,
+]
+
+var y: int = g[0].call() + g[1].call()
+
+func test():
+	print(x)
+	f.call()
+	print(x)
+
+	print(y)
+	g[0].call()
+	g[1].call()
+	print(y)
+
+	# This prevents memory leak in CI. TODO: Investigate it.
+	# Also you cannot run the `EditorScript` twice without the cleaning. Error:
+	# Condition "!p_keep_state && has_instances" is true. Returning: ERR_ALREADY_IN_USE
+	f = Callable()
+	g.clear()

modules/gdscript/tests/scripts/analyzer/features/lambda_cyclic_ref_body.out

@@ -0,0 +1,5 @@
+GDTEST_OK
+1
+2
+3
+33