Merge branch 'js/comma-semicolon-confusion'

Code clean-up.

* js/comma-semicolon-confusion:
  detect-compiler: detect clang even if it found CUDA
  clang: warn when the comma operator is used
  compat/regex: explicitly mark intentional use of the comma operator
  wildmatch: avoid using of the comma operator
  diff-delta: avoid using the comma operator
  xdiff: avoid using the comma operator unnecessarily
  clar: avoid using the comma operator unnecessarily
  kwset: avoid using the comma operator unnecessarily
  rebase: avoid using the comma operator unnecessarily
  remote-curl: avoid using the comma operator unnecessarily

meson.build

@@ -715,6 +715,7 @@ libgit_dependencies = [ ]
 # Makefile.
 if get_option('warning_level') in ['2','3', 'everything'] and compiler.get_argument_syntax() == 'gcc'
   foreach cflag : [
+    '-Wcomma',
     '-Wdeclaration-after-statement',
     '-Wformat-security',
     '-Wold-style-definition',