Get GNU MPFR and MPC tests to pass

This change fixes more issues with our scanf() function.

tool/emacs/c.lang

@@ -120,7 +120,6 @@ Keywords={
 "privileged",
 "hasatleast",
 "nodebuginfo",
-"frownedupon",
 "noreturn",
 "initarray",
 "mayalias",
@@ -133,7 +132,6 @@ Keywords={
 "attributeallocalign",
 "dontdiscard",
 "nointerpose",
-"compatfn",
 "returnsnonnull",
 "strftimeesque",
 "firstclass",

tool/emacs/cosmo-c-constants.el

@@ -111,7 +111,6 @@
     "INFINITY"
     "M_E"
     "M_LOG2_10"
-    "M_LOG10_2"
     "M_LOG2E"
     "M_LOG10E"
     "M_LN2"

tool/emacs/cosmo-c-keywords.el

@@ -70,7 +70,6 @@
            "privileged"
            "hasatleast"
            "nodebuginfo"
-           "frownedupon"
            "wontreturn"
            "dontasan"
            "nomsan"
@@ -87,7 +86,6 @@
            "attributeallocalign"
            "dontdiscard"
            "nointerpose"
-           "compatfn"
            "returnsnonnull"
            "strftimeesque"
            "firstclass"

tool/emacs/key.py

@@ -328,14 +328,12 @@ cosmo_kws = frozenset([
   "attributeallocsize",
   "autotype",
   "byanymeansnecessary",
-  "compatfn",
   "decltype",
   "externinline",
   "firstclass",
   "flattenout",
   "forcealignargpointer",
   "forceinline",
-  "frownedupon",
   "hasatleast",
   "initarray",
   "interruptfn",
@@ -389,14 +387,12 @@ cosmo_kws = frozenset([
   "attributeallocsize",
   "autotype",
   "byanymeansnecessary",
-  "compatfn",
   "decltype",
   "externinline",
   "firstclass",
   "flattenout",
   "forcealignargpointer",
   "forceinline",
-  "frownedupon",
   "hasatleast",
   "initarray",
   "interruptfn",