RFR: 8042893 and 8042894: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files

[David Lindholm]

Hi,

Please review the following patch that removes 
PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC from all source files in HotSpot. It 
also fixes all compiler warnings caused by format strings that were 
previously silenced by this pragma.

This patch is a joint effort by me and Goetz Lindenmaier.

Bug: https://bugs.openjdk.java.net/browse/JDK-8042893
Bug: https://bugs.openjdk.java.net/browse/JDK-8042894
Webrev: http://cr.openjdk.java.net/~david/JDK-8042893-8042894/webrev.00/

Testing: Passed JPRT


Thanks,
David