Added attributes to method implementations

In Xcode 10, if the `__attribute__((noescape))` is present in the header file,
it must also be present in the implementation.

src/fmdb/FMDatabase.m

@@ -1272,7 +1272,7 @@ - (BOOL)executeStatements:(NSString *)sql {
     return [self executeStatements:sql withResultBlock:nil];
 }
 
-- (BOOL)executeStatements:(NSString *)sql withResultBlock:(FMDBExecuteStatementsCallbackBlock)block {
+- (BOOL)executeStatements:(NSString *)sql withResultBlock:(__attribute__((noescape)) FMDBExecuteStatementsCallbackBlock)block {
     
     int rc;
     char *errmsg = nil;
@@ -1434,7 +1434,7 @@ - (BOOL)rollbackToSavePointWithName:(NSString*)name error:(NSError**)outErr {
 #endif
 }
 
-- (NSError*)inSavePoint:(void (^)(BOOL *rollback))block {
+- (NSError*)inSavePoint:(__attribute__((noescape)) void (^)(BOOL *rollback))block {
 #if SQLITE_VERSION_NUMBER >= 3007000
     static unsigned long savePointIdx = 0;
     

src/fmdb/FMDatabasePool.m

@@ -241,7 +241,7 @@ - (void)releaseAllDatabases {
     }];
 }
 
-- (void)inDatabase:(void (^)(FMDatabase *db))block {
+- (void)inDatabase:(__attribute__((noescape)) void (^)(FMDatabase *db))block {
     
     FMDatabase *db = [self db];
     
@@ -281,15 +281,15 @@ - (void)beginTransaction:(FMDBTransaction)transaction withBlock:(void (^)(FMData
     [self pushDatabaseBackInPool:db];
 }
 
-- (void)inTransaction:(void (^)(FMDatabase *db, BOOL *rollback))block {
+- (void)inTransaction:(__attribute__((noescape)) void (^)(FMDatabase *db, BOOL *rollback))block {
     [self beginTransaction:FMDBTransactionExclusive withBlock:block];
 }
 
-- (void)inDeferredTransaction:(void (^)(FMDatabase *db, BOOL *rollback))block {
+- (void)inDeferredTransaction:(__attribute__((noescape)) void (^)(FMDatabase *db, BOOL *rollback))block {
     [self beginTransaction:FMDBTransactionDeferred withBlock:block];
 }
 
-- (void)inExclusiveTransaction:(void (^)(FMDatabase *db, BOOL *rollback))block {
+- (void)inExclusiveTransaction:(__attribute__((noescape)) void (^)(FMDatabase *db, BOOL *rollback))block {
     [self beginTransaction:FMDBTransactionExclusive withBlock:block];
 }
 
@@ -297,7 +297,7 @@ - (void)inImmediateTransaction:(__attribute__((noescape)) void (^)(FMDatabase *d
     [self beginTransaction:FMDBTransactionImmediate withBlock:block];
 }
 
-- (NSError*)inSavePoint:(void (^)(FMDatabase *db, BOOL *rollback))block {
+- (NSError*)inSavePoint:(__attribute__((noescape)) void (^)(FMDatabase *db, BOOL *rollback))block {
 #if SQLITE_VERSION_NUMBER >= 3007000
     static unsigned long savePointIdx = 0;
     

src/fmdb/FMDatabaseQueue.m

@@ -177,7 +177,7 @@ - (FMDatabase*)database {
     return _db;
 }
 
-- (void)inDatabase:(void (^)(FMDatabase *db))block {
+- (void)inDatabase:(__attribute__((noescape)) void (^)(FMDatabase *db))block {
 #ifndef NDEBUG
     /* Get the currently executing queue (which should probably be nil, but in theory could be another DB queue
      * and then check it against self to make sure we're not about to deadlock. */
@@ -240,23 +240,23 @@ - (void)beginTransaction:(FMDBTransaction)transaction withBlock:(void (^)(FMData
     FMDBRelease(self);
 }
 
-- (void)inTransaction:(void (^)(FMDatabase *db, BOOL *rollback))block {
+- (void)inTransaction:(__attribute__((noescape)) void (^)(FMDatabase *db, BOOL *rollback))block {
     [self beginTransaction:FMDBTransactionExclusive withBlock:block];
 }
 
-- (void)inDeferredTransaction:(void (^)(FMDatabase *db, BOOL *rollback))block {
+- (void)inDeferredTransaction:(__attribute__((noescape)) void (^)(FMDatabase *db, BOOL *rollback))block {
     [self beginTransaction:FMDBTransactionDeferred withBlock:block];
 }
 
-- (void)inExclusiveTransaction:(void (^)(FMDatabase *db, BOOL *rollback))block {
+- (void)inExclusiveTransaction:(__attribute__((noescape)) void (^)(FMDatabase *db, BOOL *rollback))block {
     [self beginTransaction:FMDBTransactionExclusive withBlock:block];
 }
 
-- (void)inImmediateTransaction:(void (^)(FMDatabase * _Nonnull, BOOL * _Nonnull))block {
+- (void)inImmediateTransaction:(__attribute__((noescape)) void (^)(FMDatabase * _Nonnull, BOOL * _Nonnull))block {
     [self beginTransaction:FMDBTransactionImmediate withBlock:block];
 }
 
-- (NSError*)inSavePoint:(void (^)(FMDatabase *db, BOOL *rollback))block {
+- (NSError*)inSavePoint:(__attribute__((noescape)) void (^)(FMDatabase *db, BOOL *rollback))block {
 #if SQLITE_VERSION_NUMBER >= 3007000
     static unsigned long savePointIdx = 0;
     __block NSError *err = 0x00;