Finish linux -> __linux__
Merge pull request #2976 from yebblies/linuxlinux

Finish linux -> __linux__
fix Issue 11756 - Irrelevant variable name printing in CTFE error message
Merge pull request #2977 from 9rnsr/fix11756

Issue 11756 - Irrelevant variable name printing in CTFE error message
fix Issue 11751 - Hex float exponents should be decimal
Merge pull request #2978 from 9rnsr/fix11751

[REG2.065a] Issue 11751 - Hex float exponents should be decimal
fix Issue 11759 - Poor error message trying to use lowercase L in literal suffix
Merge pull request #2979 from 9rnsr/fix11759

Issue 11759 - Poor error message trying to use lowercase L in literal suffix