RFR: 8295435: Build failure with GCC7 after JDK-8294314 due to strict-overflow warnings [v2]

[Jie Fu]

> Hi all,
> 
> Let's disable `-Werror=strict-overflow` to get it build with gcc7 on Linux/x86.
> 
> bytecodeAssembler.cpp
> instanceKlass.cpp
> klassVtable.cpp
> 
> 
> Thanks.
> Best regards,
> Jie

Jie Fu has updated the pull request incrementally with one additional commit since the last revision:

  Disable strict-overflow warnings globally

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/10738/files
  - new: https://git.openjdk.org/jdk/pull/10738/files/dcf8c0c0..b354a646

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=10738&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=10738&range=00-01

  Stats: 5 lines in 1 file changed: 2 ins; 3 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/10738.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/10738/head:pull/10738

PR: https://git.openjdk.org/jdk/pull/10738