Fix macro expansion in expandMacros (#8998)

* Fix macro expansion in expandMacros

Running a semanticized node trough the semantic pass was a bad idea.

Fixes #7723

* Simpler smaller implementation

tests/macros/t7723.nim

@@ -0,0 +1,19 @@
+discard """
+  msg: '''
+proc init(foo128049: int; bar128051: typedesc[int]): int =
+  foo128049
+'''
+"""
+
+import macros
+
+macro foo1(): untyped =
+  result = newStmtList()
+  result.add quote do:
+    proc init(foo: int, bar: typedesc[int]): int =
+      foo
+
+expandMacros:
+  foo1()
+
+doAssert init(1, int) == 1