gen/build: use name_override for all IOs defined in Platform file (avoid random naming of IOs)

litex/build/generic_platform.py

@@ -161,10 +161,14 @@ class ConstraintManager:
     def request(self, name, number=None):
         resource = _lookup(self.available, name, number)
         rt = _resource_type(resource)
-        if isinstance(rt, int):
-            obj = Signal(rt, name_override=resource[0])
+        if number is None:
+            resource_name = name
         else:
-            obj = Record(rt, name=resource[0])
+            resource_name = name + str(number)
+        if isinstance(rt, int):
+            obj = Signal(rt, name_override=resource_name)
+        else:
+            obj = Record(rt, name=resource_name, use_name_override=True)
 
         for element in resource[2:]:
             if isinstance(element, PlatformInfo):

litex/gen/genlib/record.py

@@ -86,7 +86,7 @@ def layout_partial(layout, *elements):
 
 
 class Record:
-    def __init__(self, layout, name=None):
+    def __init__(self, layout, name=None, use_name_override=False):
         self.name = get_obj_var_name(name, "")
         self.layout = layout
 
@@ -100,6 +100,9 @@ class Record:
                     fname, fsize, fdirection = f
                 else:
                     fname, fsize = f
+                if use_name_override:
+                    finst = Signal(fsize, name_override=prefix + fname)
+                else:
                     finst = Signal(fsize, name=prefix + fname)
             elif isinstance(f[1], list):  # case 3
                 fname, fsublayout = f