Disable NORETURN annotation on PROCAbort for Arm (#99587)

* Disable NORETURN annotation on PROCAbort for Arm

Contributes to #86273

* Fix build break

Author: jkotas

src/coreclr/pal/src/include/pal/process.h

@@ -155,7 +155,10 @@ BOOL PROCAbortInitialize();
 
   Does not return
 --*/
+#if !defined(HOST_ARM)  // PAL_NORETURN produces broken unwinding information for this method
+                        // making crash dumps impossible to analyze
 PAL_NORETURN
+#endif
 VOID PROCAbort(int signal = SIGABRT, siginfo_t* siginfo = nullptr);
 
 /*++

src/coreclr/pal/src/thread/process.cpp

@@ -1271,7 +1271,7 @@ RaiseFailFastException(
     ENTRY("RaiseFailFastException");
 
     TerminateCurrentProcessNoExit(TRUE);
-    PROCAbort();
+    for (;;) PROCAbort();
 
     LOGEXIT("RaiseFailFastException");
     PERF_EXIT(RaiseFailFastException);
@@ -2541,7 +2541,9 @@ PROCCreateCrashDumpIfEnabled(int signal, siginfo_t* siginfo, bool serialize)
 
   Does not return
 --*/
+#if !defined(HOST_ARM)
 PAL_NORETURN
+#endif
 VOID
 PROCAbort(int signal, siginfo_t* siginfo)
 {