[emacs] Get llvm-mode to font-lock "personality"

[echristo]

FWIW I'm happy with doing post-commit review on the emacs files for you.

Also, thanks for the improvements!

-eric

llvm/trunk/utils/emacs/llvm-mode.el

(defvar llvm-font-lock-keywords
    '("\\b[-+]?[0-9]+\.[0-9]*\([eE][-+]?[0-9]+\)?\\b" . font-lock-preprocessor-face)
    ;; Hex constants
    '("\\b0x[0-9A-Fa-f]+\\b" . font-lock-preprocessor-face)
    ;; Keywords
    `(,(regexp-opt '("begin" "end" "true" "false" "zeroinitializer" "declare"
                     "define" "global" "constant" "const" "internal" "linkonce" "linkonce_odr"
                     "weak" "weak_odr" "appending" "uninitialized" "implementation" "..."
                     "null" "undef" "to" "except" "not" "target" "endian" "little" "big"
-                    "pointersize" "volatile" "fastcc" "coldcc" "cc") 'symbols) . font-lock-keyword-face)
+                    "pointersize" "volatile" "fastcc" "coldcc" "cc" "personality") 'symbols) . font-lock-keyword-face)
    ;; Arithmetic and Logical Operators
    `(,(regexp-opt '("add" "sub" "mul" "sdiv" "udiv" "urem" "srem" "and" "or" "xor"
                     "setne" "seteq" "setlt" "setgt" "setle" "setge") 'symbols) . font-lock-keyword-face)
    ;; Floating-point operators
    `(,(regexp-opt '("fadd" "fsub" "fmul" "fdiv" "frem") 'symbols) . font-lock-keyword-face)
    ;; Special instructions
    `(,(regexp-opt '("phi" "tail" "call" "select" "to" "shl" "lshr" "ashr" "fcmp" "icmp" "va_arg" "landingpad") 'symbols) . font-lock-keyword-face)
    ;; Control instructions