gcc 4 fixes.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@29602 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/system/kernel/cache/block_cache.cpp

@@ -1877,7 +1877,7 @@ cache_start_transaction(void* _cache)
 			cache->last_transaction->id);
 	}
 
-	cache_transaction* transaction = new(nothrow) cache_transaction;
+	cache_transaction* transaction = new(std::nothrow) cache_transaction;
 	if (transaction == NULL)
 		return B_NO_MEMORY;
 
@@ -2096,7 +2096,7 @@ cache_detach_sub_transaction(void* _cache, int32 id,
 		return B_BAD_VALUE;
 
 	// create a new transaction for the sub transaction
-	cache_transaction* newTransaction = new(nothrow) cache_transaction;
+	cache_transaction* newTransaction = new(std::nothrow) cache_transaction;
 	if (transaction == NULL)
 		return B_NO_MEMORY;
 
@@ -2466,7 +2466,7 @@ block_cache_delete(void* _cache, bool allowWrites)
 void*
 block_cache_create(int fd, off_t numBlocks, size_t blockSize, bool readOnly)
 {
-	block_cache* cache = new(nothrow) block_cache(fd, numBlocks, blockSize,
+	block_cache* cache = new(std::nothrow) block_cache(fd, numBlocks, blockSize,
 		readOnly);
 	if (cache == NULL)
 		return NULL;