Address bug #9602. Roze is right,

...IF is too generic a name for that macro to claim.  wmlscope will catch
broken references to it in UMC.

data/campaigns/Descent_Into_Darkness/scenarios/08_A_Small_Favor2.cfg

@@ -142,7 +142,7 @@
         {CLEAR_VARIABLE actualStart}
 
         {VARIABLE_OP i random (0..2)}
-        {IF i numerical_equals 0 (
+        {IF_VARIABLE i numerical_equals 0 (
         [then]
             [terrain]
                 x=6
@@ -151,7 +151,7 @@
             [/terrain]
         [/then]
         )}
-        {IF i numerical_equals 1 (
+        {IF_VARIABLE i numerical_equals 1 (
         [then]
             [terrain]
                 x=6
@@ -160,7 +160,7 @@
             [/terrain]
         [/then]
         )}
-        {IF i numerical_equals 2 (
+        {IF_VARIABLE i numerical_equals 2 (
         [then]
             [terrain]
                 x=2

data/campaigns/Liberty/scenarios/01_The_Raid.cfg

@@ -302,7 +302,7 @@
         {LOYAL_PEASANT Thug_Peasant 9 4 Jasken ( _ "Jasken") {TRAIT_RESILIENT}}
 #endif
 
-        {IF $unit.side equals 1 (
+        {IF_VARIABLE $unit.side equals 1 (
         [then]
             [message]
                 description=Wolmas

data/campaigns/Liberty/scenarios/05_Hide_and_Seek.cfg

@@ -301,7 +301,7 @@
             side=1
         [/filter_second]
 
-        {IF $second_unit.hitpoints greater_than 0 (
+        {IF_VARIABLE $second_unit.hitpoints greater_than 0 (
         [then]
             [message]
                 speaker=Baldras

data/core/macros/conditional-utils.cfg

@@ -13,11 +13,11 @@
     [/have_location]
 #enddef
 
-#define IF VAR OP VAL CONTENTS
+#define IF_VAR VAR OP VAL CONTENTS
     # Shortcut for IF statements testing the value of a variable. Need to write
     # [then] and [else] tags manually.
     # Use like this:
-    #! {IF some_variable equals yes (
+    #! {IF_VARIABLE some_variable equals yes (
     #!     [then]
     #!         ...
     #!     [/then]