[compiler-rt] [compiler-rt] Write ASAN/TSAN reports to a global for crash reporting (PR #200526)

[Dan Blackwell via llvm-commits]

================
@@ -359,6 +402,60 @@ void PrintReport(const ReportDesc *rep) {
     DumpProcessMap();
 
   Printf("==================\n");
+#  if SANITIZER_APPLE
+  if (common_flags()->crashreporter_global) {
+    InternalMmapVector<llvm_sanitizer_report_payload_stack_v1> stacks;
+    InternalMmapVector<char> descbuf(
+        LLVM_SANITIZER_V1_STACK_DESCRIPTION_MAXLEN);
+    stacks.reserve(4);
+    uptr fault_address = 0, allocation_addr = 0, allocation_size = 0;
+
+    for (uptr i = 0; i < rep->mops.Size(); i++) {
----------------
DanBlackwell wrote:

NIT: I think the style guide would have this as:
```suggestion
    for (uptr i = 0, len = rep->mops.Size(); i < len; i++) {
```

https://github.com/llvm/llvm-project/pull/200526