[asan] Add another use cases can we previously get false reports

[vitalybuka]

Summary

Also convert to C++ and disabled test as I am going to undo the fix.

PR28267

[vitalybuka]

Disable test

test/asan/TestCases/use-after-scope-goto.c

 // RUN: %clang_asan -O0 -fsanitize-address-use-after-scope %s -o %t && %run %t
 
 // Function jumps over variable initialization making lifetime analysis
 // ambiguous. Asan should ignore such variable and program must not fail.
 
 int *ptr;
 
-void f(int cond) {
+void f1(int cond) {
   if (cond)
     goto label;
   int tmp = 1;
 
 label:
   ptr = &tmp;
   *ptr = 5;
 }
 
+void f2(int cond) {
+  switch (cond) {
+    case 1: {
+      ++cond;
+      int tmp = 1;
+      ptr = &tmp;
+      exit(0);
+    case 2:
+      ptr = &tmp;
+      *ptr = 5;
+      exit(0);
+    }
+  }
+}
+
 int main() {
-  f(1);
+  f1(1);
+  f2(2);
   return 0;
 }
+