add test for delete size mismatch

test/simple-memory-corruption/Makefile

@@ -22,7 +22,8 @@ EXECUTABLES := \
     uninitialized_malloc_usable_size \
     eight_byte_overflow_small \
     eight_byte_overflow_large \
-    string_overflow
+    string_overflow \
+    delete_type_size_mismatch
 
 all: $(EXECUTABLES)
 

test/simple-memory-corruption/delete_type_size_mismatch.cc

@@ -0,0 +1,13 @@
+#include <stdint.h>
+
+struct foo {
+    uint64_t a, b, c, d;
+};
+
+__attribute__((optimize(0)))
+int main(void) {
+    void *p = new char;
+    struct foo *c = (struct foo *)p;
+    delete c;
+    return 0;
+}