Correct the test output to follow UML semantics

Author: Julfried

tests/pyreverse/functional/class_diagrams/aggregation/fields.mmd

@@ -1,23 +1,23 @@
 classDiagram
   class A {
-    x
+    x : P
   }
   class B {
-    x
+    x : P
   }
   class C {
-    x
+    x : P
   }
   class D {
-    x
+    x : P
   }
   class E {
-    x
+    x : P
   }
   class P {
   }
-  P --* A : x
-  P --* C : x
+  P --o A : x
+  P --o B : x
+  P --o C : x
   P --* D : x
   P --* E : x
-  P --o B : x

tests/pyreverse/functional/class_diagrams/aggregation/fields.py

@@ -4,24 +4,24 @@ class P:
     pass
 
 class A:
-    x: P
+    x: P  # can't tell, so default to aggregation
 
 class B:
     def __init__(self, x: P):
-        self.x = x
+        self.x = x  # not instantiated, so aggregation
 
 class C:
     x: P
 
     def __init__(self, x: P):
-        self.x = x
+        self.x = x  # not instantiated, so aggregation
 
 class D:
     x: P
 
     def __init__(self):
-        self.x = P()
+        self.x = P()  # instantiated, so composition
 
 class E:
     def __init__(self):
-        self.x = P()
+        self.x = P()  # instantiated, so composition