Fix location for popping pattern

Summary: We have the wrong location for the POP_TOP of a pattern. It also impacts 3.12 so this is an easy fix.

Reviewed By: mpage

Differential Revision: D82077054

fbshipit-source-id: 5c764a324a550b5e89483aa348bcd5ecc81b6660

Author: DinoV

cinderx/PythonLib/cinderx/compiler/pycodegen.py

@@ -5867,7 +5867,7 @@ def emit_finish_match_class(self, node: ast.MatchClass, pc: PatternContext) -> N
             else:
                 pattern = kwd_patterns[i - nargs]
             if self._wildcard_check(pattern):
-                self.emit("POP_TOP")
+                self.graph.emit_with_loc("POP_TOP", 0, node)
                 continue
 
             self._visit_subpattern(pattern, pc)

cinderx/PythonLib/test_cinderx/test_compiler/testcorpus/85_match_class_multiple_items.py

@@ -0,0 +1,5 @@
+# pyre-ignore-all-errors
+def f(x):
+    match item:
+        case C(a, _, b, c):
+            pass