Prevent minifiers to suggest 'it' as an identifier name

Bug: 225131995
Change-Id: If401a56c0bc12d5b031755e3a1e81d4fbde7b936
diff --git a/src/main/java/com/android/tools/r8/utils/SymbolGenerationUtils.java b/src/main/java/com/android/tools/r8/utils/SymbolGenerationUtils.java
index 9e23205..3729ead 100644
--- a/src/main/java/com/android/tools/r8/utils/SymbolGenerationUtils.java
+++ b/src/main/java/com/android/tools/r8/utils/SymbolGenerationUtils.java
@@ -18,7 +18,8 @@
   }
 
   public static Set<String> PRIMITIVE_TYPE_NAMES =
-      Sets.newHashSet("boolean", "byte", "char", "double", "float", "int", "long", "short", "void");
+      Sets.newHashSet(
+          "boolean", "byte", "char", "double", "float", "int", "long", "short", "void", "it");
 
   // These letters are used not creating fresh names to output and not for parsing dex/class files.
   private static final char[] IDENTIFIER_CHARACTERS =