fix warrnings and increase type-check time

Author: skywinder

Sources/web3swift/Transaction/BloomFilter.swift

@@ -32,7 +32,7 @@ extension EthereumBloomFilter {
     }
 
     static func bloom9(_ data: Data) -> BigUInt {
-        var b = data.sha3(.keccak256)
+        let b = data.sha3(.keccak256)
         var r = BigUInt(0)
         let mask = BigUInt(2047)
         for i in stride(from: 0, to: 6, by: 2) {

web3swift.xcodeproj/project.pbxproj

@@ -1404,7 +1404,7 @@
 				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
 				MTL_FAST_MATH = YES;
 				ONLY_ACTIVE_ARCH = YES;
-				OTHER_SWIFT_FLAGS = "-Xfrontend -warn-long-expression-type-checking=100";
+				OTHER_SWIFT_FLAGS = "-Xfrontend -warn-long-expression-type-checking=150";
 				SDKROOT = macosx;
 				SUPPORTED_PLATFORMS = "macosx iphonesimulator iphoneos";
 				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
@@ -1466,7 +1466,7 @@
 				MACOSX_DEPLOYMENT_TARGET = 10.11;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				MTL_FAST_MATH = YES;
-				OTHER_SWIFT_FLAGS = "-Xfrontend -warn-long-expression-type-checking=100";
+				OTHER_SWIFT_FLAGS = "-Xfrontend -warn-long-expression-type-checking=150";
 				SDKROOT = macosx;
 				SUPPORTED_PLATFORMS = "macosx iphonesimulator iphoneos";
 				SWIFT_COMPILATION_MODE = wholemodule;