Rename SkylarkSemantics to StarlarkSemantics

RELNOTES: None.
PiperOrigin-RevId: 234478524
diff --git a/src/main/java/com/google/devtools/build/lib/skylarkbuildapi/SkylarkRuleContextApi.java b/src/main/java/com/google/devtools/build/lib/skylarkbuildapi/SkylarkRuleContextApi.java
index e835f29..7e8bee7 100644
--- a/src/main/java/com/google/devtools/build/lib/skylarkbuildapi/SkylarkRuleContextApi.java
+++ b/src/main/java/com/google/devtools/build/lib/skylarkbuildapi/SkylarkRuleContextApi.java
@@ -34,7 +34,7 @@
 import com.google.devtools.build.lib.syntax.SkylarkList;
 import com.google.devtools.build.lib.syntax.SkylarkList.Tuple;
 import com.google.devtools.build.lib.syntax.SkylarkNestedSet;
-import com.google.devtools.build.lib.syntax.SkylarkSemantics.FlagIdentifier;
+import com.google.devtools.build.lib.syntax.StarlarkSemantics.FlagIdentifier;
 import java.util.Map;
 import javax.annotation.Nullable;