Introduce virReportError macro for general error reporting

Nearly every source file does something like

  #define VIR_FROM_THIS VIR_FROM_FOO
  #define virFooReportErorr(code, ...) \
     virReportErrorHelper(VIR_FROM_THIS, code,  __FILE__,    \
                          __FUNCTION__, __LINE__, \
                          __VA_ARGS__)

This creates needless duplication and inconsistent error
reporting function names in each file. It is trivial to
just have virterror_internal.h provide a virReportError
macro that is equivalent

* src/util/virterror_internal.h: Define virReportError(code, ...)

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>

cfg.mk

@@ -560,6 +560,7 @@ msg_gen_function += virNetworkReportError
 msg_gen_function += virNodeDeviceReportError
 msg_gen_function += virNWFilterReportError
 msg_gen_function += virRaiseError
+msg_gen_function += virReportError
 msg_gen_function += virReportErrorHelper
 msg_gen_function += virReportSystemError
 msg_gen_function += virSecretReportError

src/util/virterror_internal.h

@@ -153,6 +153,9 @@ void virReportOOMErrorFull(int domcode,
 # define virReportOOMError() \
     virReportOOMErrorFull(VIR_FROM_THIS, __FILE__, __FUNCTION__, __LINE__)
 
+# define virReportError(code, ...)                                   \
+    virReportErrorHelper(VIR_FROM_THIS, code, __FILE__,              \
+                         __FUNCTION__, __LINE__, __VA_ARGS__)
 
 int virSetError(virErrorPtr newerr);
 void virDispatchError(virConnectPtr conn);