基线重置，修复了一些 bug

Test/ClassArrayTest/App/class_test.vp

@@ -1,20 +1,21 @@
 import stdio
+import stdlib
 import stdint
 import t, c
 
 
-class SimpleData(t.Object):
+class SimpleData():
     x: t.CInt
     y: t.CInt
 
 
-class Point3D(t.Object):
+class Point3D():
     x: t.CFloat
     y: t.CFloat
     z: t.CFloat
 
 
-class Student(t.Object):
+class Student():
     name: t.CChar | t.CPtr
     age: t.CInt
     score: t.CInt
@@ -31,7 +32,7 @@ class Student(t.Object):
         return self.score
 
 
-class Counter(t.Object):
+class Counter():
     value: t.CInt
 
     def __init__(self, initial: t.CInt):
@@ -44,7 +45,7 @@ class Counter(t.Object):
         return self.value
 
 
-class StackObj(t.Object):
+class StackObj():
     data: t.CInt
     next_ptr: t.CVoid | t.CPtr
 
@@ -99,10 +100,10 @@ def TestStackAllocation():
 
 def TestHeapAllocation():
     stdio.printf("=== Test Heap Allocation ===\n")
-    ptr: t.CVoid | t.CPtr = c.malloc(1024)
+    ptr: t.CVoid | t.CPtr = stdlib.malloc(1024)
     if ptr != 0:
         stdio.printf("Allocated 1024 bytes at %p\n", ptr)
-        c.free(ptr)
+        stdlib.free(ptr)
         stdio.printf("Freed memory\n")
     else:
         stdio.printf("malloc failed\n")
@@ -111,10 +112,10 @@ def TestHeapAllocation():
 def TestHeapObjectWithInit():
     stdio.printf("=== Test Heap Object with Init ===\n")
     mem_size: t.CSizeT = 256
-    ptr: t.CVoid | t.CPtr = c.malloc(mem_size)
+    ptr: t.CVoid | t.CPtr = stdlib.malloc(mem_size)
     if ptr != 0:
         stdio.printf("Allocated %d bytes\n", mem_size)
-        c.free(ptr)
+        stdlib.free(ptr)
     else:
         stdio.printf("malloc failed\n")