Fix outdated include guards.

c++/src/kj/debug.h

@@ -98,8 +98,8 @@
 // * For every macro `FOO` above, there is a `DFOO` version (or `RECOVERABLE_DFOO`) which is only
 //   executed in debug mode.  When `NDEBUG` is defined, these macros expand to nothing.
 
-#ifndef KJ_LOGGING_H_
-#define KJ_LOGGING_H_
+#ifndef KJ_DEBUG_H_
+#define KJ_DEBUG_H_
 
 #include "string.h"
 #include "exception.h"
@@ -296,4 +296,4 @@ void Log::addContextTo(Exception& exception, const char* file, int line,
 
 }  // namespace kj
 
-#endif  // KJ_LOGGING_H_
+#endif  // KJ_DEBUG_H_

c++/src/kj/units.h

@@ -25,8 +25,8 @@
 // time, but should then be optimized down to basic primitives (usually, integers) by the
 // compiler.
 
-#ifndef KJ_TYPE_SAFETY_H_
-#define KJ_TYPE_SAFETY_H_
+#ifndef KJ_UNITS_H_
+#define KJ_UNITS_H_
 
 #include "common.h"
 
@@ -364,4 +364,4 @@ inline constexpr auto operator*(UnitRatio<Number1, Unit2, Unit> ratio,
 
 }  // namespace kj
 
-#endif  // KJ_TYPE_SAFETY_H_
+#endif  // KJ_UNITS_H_