[libcxxabi] NFC: fix incorrect indentation of braces

Some functions in cxa_exception_storage.cpp have incorrect indentation
of braces; fix them.
Original patch by Zhouyi Zhou <zhouzhouyi@gmail.com>

Also, remove a line of commented-out (and no-longer-possible-to-compile)
code. That thread-safe-static initialization of `init` was replaced
with the call to pthread_once directly above it, back in 2012.

Differential Revision: https://reviews.llvm.org/D109408

libcxxabi/src/cxa_exception_storage.cpp

@@ -21,25 +21,24 @@ extern "C" {
     static __cxa_eh_globals eh_globals;
     __cxa_eh_globals *__cxa_get_globals() { return &eh_globals; }
     __cxa_eh_globals *__cxa_get_globals_fast() { return &eh_globals; }
-    }
-}
+} // extern "C"
+} // namespace __cxxabiv1
 
 #elif defined(HAS_THREAD_LOCAL)
 
 namespace __cxxabiv1 {
-
 namespace {
-    __cxa_eh_globals * __globals () {
+    __cxa_eh_globals *__globals() {
         static thread_local __cxa_eh_globals eh_globals;
         return &eh_globals;
-        }
     }
+} // namespace
 
 extern "C" {
-    __cxa_eh_globals * __cxa_get_globals      () { return __globals (); }
-    __cxa_eh_globals * __cxa_get_globals_fast () { return __globals (); }
-    }
-}
+    __cxa_eh_globals *__cxa_get_globals() { return __globals(); }
+    __cxa_eh_globals *__cxa_get_globals_fast() { return __globals(); }
+} // extern "C"
+} // namespace __cxxabiv1
 
 #else
 
@@ -59,47 +58,46 @@ namespace {
     std::__libcpp_tls_key key_;
     std::__libcpp_exec_once_flag flag_ = _LIBCPP_EXEC_ONCE_INITIALIZER;
 
-    void _LIBCPP_TLS_DESTRUCTOR_CC destruct_ (void *p) {
-        __free_with_fallback ( p );
-        if ( 0 != std::__libcpp_tls_set ( key_, NULL ) )
+    void _LIBCPP_TLS_DESTRUCTOR_CC destruct_(void *p) {
+        __free_with_fallback(p);
+        if (0 != std::__libcpp_tls_set(key_, NULL))
             abort_message("cannot zero out thread value for __cxa_get_globals()");
-        }
+    }
 
-    void construct_ () {
-        if ( 0 != std::__libcpp_tls_create ( &key_, destruct_ ) )
+    void construct_() {
+        if (0 != std::__libcpp_tls_create(&key_, destruct_))
             abort_message("cannot create thread specific key for __cxa_get_globals()");
-        }
-}
+    }
+} // namespace
 
 extern "C" {
-    __cxa_eh_globals * __cxa_get_globals () {
-    //  Try to get the globals for this thread
-        __cxa_eh_globals* retVal = __cxa_get_globals_fast ();
-
-    //  If this is the first time we've been asked for these globals, create them
-        if ( NULL == retVal ) {
-            retVal = static_cast<__cxa_eh_globals*>
-                        (__calloc_with_fallback (1, sizeof (__cxa_eh_globals)));
-            if ( NULL == retVal )
+    __cxa_eh_globals *__cxa_get_globals() {
+        // Try to get the globals for this thread
+        __cxa_eh_globals *retVal = __cxa_get_globals_fast();
+
+        // If this is the first time we've been asked for these globals, create them
+        if (NULL == retVal) {
+            retVal = static_cast<__cxa_eh_globals*>(
+                __calloc_with_fallback(1, sizeof(__cxa_eh_globals)));
+            if (NULL == retVal)
                 abort_message("cannot allocate __cxa_eh_globals");
-            if ( 0 != std::__libcpp_tls_set ( key_, retVal ) )
+            if (0 != std::__libcpp_tls_set(key_, retVal))
                abort_message("std::__libcpp_tls_set failure in __cxa_get_globals()");
-           }
-        return retVal;
         }
+        return retVal;
+    }
 
     // Note that this implementation will reliably return NULL if not
     // preceded by a call to __cxa_get_globals().  This is an extension
     // to the Itanium ABI and is taken advantage of in several places in
     // libc++abi.
-    __cxa_eh_globals * __cxa_get_globals_fast () {
-    //  First time through, create the key.
+    __cxa_eh_globals *__cxa_get_globals_fast() {
+        // First time through, create the key.
         if (0 != std::__libcpp_execute_once(&flag_, construct_))
             abort_message("execute once failure in __cxa_get_globals_fast()");
-//        static int init = construct_();
         return static_cast<__cxa_eh_globals*>(std::__libcpp_tls_get(key_));
-        }
+    }
+} // extern "C"
+} // namespace __cxxabiv1
 
-}
-}
 #endif