Update XcodeWarnings

Source/XcodeWarnings.xcconfig

@@ -46,10 +46,10 @@ CLANG_WARN_SUSPICIOUS_IMPLICIT_CONVERSION = YES
 GCC_TREAT_INCOMPATIBLE_POINTER_TYPE_WARNINGS_AS_ERRORS = YES
 GCC_TREAT_IMPLICIT_FUNCTION_DECLARATIONS_AS_ERRORS = YES
 GCC_WARN_TYPECHECK_CALLS_TO_PRINTF = YES
-CLANG_WARN_UNGUARDED_AVAILABILITY = YES
+CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE
 GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE
 GCC_WARN_UNKNOWN_PRAGMAS = YES
-CLANG_WARN_UNREACHABLE_CODE = YES
+CLANG_WARN_UNREACHABLE_CODE = YES_AGGRESSIVE
 GCC_WARN_UNUSED_FUNCTION = YES
 GCC_WARN_UNUSED_LABEL = YES
 //GCC_WARN_UNUSED_PARAMETER = YES
@@ -79,7 +79,7 @@ CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR
 // Apple LLVM 9.0 - Warnings - Objective-C and ARC
 CLANG_WARN_OBJC_EXPLICIT_OWNERSHIP_TYPE = YES
 CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES
-CLANG_WARN_OBJC_REPEATED_USE_OF_WEAK = YES
+CLANG_WARN_OBJC_REPEATED_USE_OF_WEAK = YES_AGGRESSIVE
 CLANG_WARN__ARC_BRIDGE_CAST_NONARC = YES
 
 // Static Analyzer - Analysis Policy
@@ -98,7 +98,7 @@ CLANG_ANALYZER_LOCALIZABILITY_NONLOCALIZED = YES
 CLANG_ANALYZER_LOCALIZABILITY_EMPTY_CONTEXT = YES
 CLANG_ANALYZER_OBJC_COLLECTIONS = YES
 CLANG_ANALYZER_GCD = YES
-CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES
+CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE
 
 // Static Analyzer - Checks - Objective-C
 CLANG_ANALYZER_OBJC_ATSYNC = YES