[clang-format]: token annotator confuses inline asm colon as ObjCMethodExpr or DictLiteral

[gedare]

The token annotator labels colons in inline asm incorrectly.

$ echo " asm ( a : );" | clang-format -debug
...
 M=0 C=1 T=ObjCMethodExpr S=0 F=0 B=0 BK=0 P=43 Name=colon L=6 PPK=2 FakeLParens= FakeRParens=0 II=0x0 Text=':'
...
$ echo " asm { a : };" | clang-format -debug
...
 M=0 C=0 T=DictLiteral S=1 F=1 B=0 BK=0 P=43 Name=colon L=8 PPK=2 FakeLParens= FakeRParens=0 II=0x0 Text=':'

A side-effect is that files with inline assembly using parentheses are identified as ObjC source files.