moved var decl for c90 compliance

Author: thesuhas

src/backend/utils/error/elog.c

@@ -861,12 +861,13 @@ matches_backtrace_functions(const char *funcname)
 int
 errcode(int sqlerrcode)
 {
-/* BEGIN_NEON */
+	ErrorData  *edata = &errordata[errordata_stack_depth];
+
+	/* BEGIN_NEON */
 	if (SqlErrorCode_hook != NULL) {
 		SqlErrorCode_hook(sqlerrcode);
 	}
-/* END_NEON */
-	ErrorData  *edata = &errordata[errordata_stack_depth];
+	/* END_NEON */
 
 	/* we don't bother incrementing recursion_depth */
 	CHECK_STACK_DEPTH();