MDEV-17400 The result of TIME('42949672965959-01') depends on architecture

- Fixing portabibily problems in sql-common/my_time.c
  (and additionally in sql/sql_time.cc)

- Re-enabling func_time.test
  Now all new chunks added in MDEV-17351 work fine on all platforms.

mysql-test/main/disabled.def

@@ -22,4 +22,3 @@ innodb_bug12902967       : broken upstream
 file_contents            : MDEV-6526 these files are not installed anymore
 max_statement_time       : cannot possibly work, depends on timing
 connect-abstract         : waiting for libmariadb update
-func_time                : new tests fail on architectures with sizeof(long)=4. Barkov is working on fixing this.

mysql-test/main/func_time.result

@@ -6098,3 +6098,18 @@ Message	Truncated incorrect time value: '87648576:59:59.000001'
 Level	Warning
 Code	1292
 Message	Truncated incorrect time value: '87648576:59:59.000001'
+#
+# MDEV-17400 The result of TIME('42949672965959-01') depends on architecture
+#
+SELECT TIME('42949672955959-01'), TIME('42949672965959-01');
+TIME('42949672955959-01')	TIME('42949672965959-01')
+NULL	NULL
+Warnings:
+Warning	1292	Truncated incorrect time value: '42949672955959-01'
+Warning	1292	Truncated incorrect time value: '42949672965959-01'
+SELECT TIME('18446744073709551615-01'),  TIME('18446744073709551616-01');
+TIME('18446744073709551615-01')	TIME('18446744073709551616-01')
+NULL	NULL
+Warnings:
+Warning	1292	Truncated incorrect time value: '18446744073709551615-01'
+Warning	1292	Truncated incorrect time value: '18446744073709551616-01'

mysql-test/main/func_time.test

@@ -3006,3 +3006,11 @@ SELECT
 
 
 --horizontal_results
+
+
+--echo #
+--echo # MDEV-17400 The result of TIME('42949672965959-01') depends on architecture
+--echo #
+
+SELECT TIME('42949672955959-01'), TIME('42949672965959-01');
+SELECT TIME('18446744073709551615-01'),  TIME('18446744073709551616-01');

sql-common/my_time.c

@@ -610,7 +610,11 @@ str_to_DDhhmmssff_internal(my_bool neg, const char *str, size_t length,
   l_time->neg= neg;
   /* Not a timestamp. Try to get this as a DAYS TO SECOND string */
   for (value=0; str != end && my_isdigit(&my_charset_latin1,*str) ; str++)
+  {
     value=value*10L + (long) (*str - '0');
+    if (value >= 42949672955959ULL) /* i.e. UINT_MAX32 : 59 : 59 */
+      goto err;
+  }
 
   /* Skip all space after 'days' */
   end_of_days= str;
@@ -629,6 +633,8 @@ str_to_DDhhmmssff_internal(my_bool neg, const char *str, size_t length,
            my_isdigit(&my_charset_latin1, str[1]))
   {
     date[0]= 0;                                 /* Assume we found hours */
+    if (value >= UINT_MAX32)
+      goto err;
     date[1]= (ulong) value;
     state=2;
     found_hours=1;
@@ -638,6 +644,7 @@ str_to_DDhhmmssff_internal(my_bool neg, const char *str, size_t length,
   {
     /* String given as one number; assume HHMMSS format */
     date[0]= 0;
+    DBUG_ASSERT(value <= ((ulonglong) UINT_MAX32) * 10000ULL);
     date[1]= (ulong) (value/10000);
     date[2]= (ulong) (value/100 % 100);
     date[3]= (ulong) (value % 100);

sql/sql_time.cc

@@ -1117,10 +1117,10 @@ calc_time_diff(const MYSQL_TIME *l_time1, const MYSQL_TIME *l_time2,
   }
 
   microseconds= ((longlong)days * SECONDS_IN_24H +
-                 (longlong)(l_time1->hour*3600L +
+                 (longlong)(l_time1->hour*3600LL +
                             l_time1->minute*60L +
                             l_time1->second) -
-                 l_sign*(longlong)(l_time2->hour*3600L +
+                 l_sign*(longlong)(l_time2->hour*3600LL +
                                    l_time2->minute*60L +
                                    l_time2->second)) * 1000000LL +
                 (longlong)l_time1->second_part -